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Scanning ISO/QCOW2 files with Linux version of Sophos

Anthony Lenzo

Hello

I install your Linux verison of your AV software. I want to know how to scan ISO/QCOW2 files. Base on the documentation I reading it states to run the following command

savscan <ISO file> -archive -ext=ISO

the file is 3GB in size, although I find the scanning takes less then 15 secs. I know by experience it should not be that fast.

I also mount the ISO file , and try to scan the files that way, but I get an error when it tries of ready the files/directories

Anybody have any suggestion on how to properly scan these types of files ??



This thread was automatically locked due to age.
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  • 0

    Hello Anthony Lenzo,

    ISO isn't a supported archive format. To scan its contents you have, as you tried, to mount the iso.

    I get an error
    which error? Could you show the error and also the exact command line you're using?

    Christian

  • 0 in reply to QC

    Hi Christian 

    This is what I been doing 

    guestmount -a file.qcow2 -i --ro mnt

     

    Then I ran savscan /mnt

    [root@public-cloud-test ~]# savscan /mnt
    SAVScan virus detection utility
    Version 5.63.0 [Linux/AMD64]
    Virus data version 5.69, October 2019
    Includes detection for 43354067 viruses, Trojans and worms
    Copyright (c) 1989-2019 Sophos Limited. All rights reserved.

    System time 01:30:37 PM, System date 12 November 2019

    IDE directory is: /opt/sophos-av/lib/sav

    Using IDE file dneti-ie.ide
    Using IDE file spy-ayj.ide
    Using IDE file qbot-fd.ide
    Using IDE file bckd-rwg.ide
    Using IDE file docd-vvm.ide
    Using IDE file ryuk-v.ide
    Using IDE file qakbo-dk.ide
    Using IDE file trick-sx.ide
    Using IDE file rtfd-alm.ide
    Using IDE file docd-vwh.ide
    Using IDE file drid-acd.ide
    Using IDE file keylo-xu.ide
    Using IDE file emot-bjo.ide
    Using IDE file blada-rx.ide
    Using IDE file emot-bfj.ide
    Using IDE file hawke-uc.ide
    Using IDE file zbot-nhi.ide
    Using IDE file msil-miz.ide
    Using IDE file emot-bjp.ide
    Using IDE file steal-sa.ide
    Using IDE file delf-hda.ide
    Using IDE file phis-fjh.ide
    Using IDE file htmld-kw.ide
    Using IDE file nemty-c.ide
    Using IDE file delf-hds.ide
    Using IDE file phis-fkc.ide
    Using IDE file zbot-nid.ide
    Using IDE file qakbo-dl.ide
    Using IDE file azoru-ck.ide
    Using IDE file phorpi-o.ide
    Using IDE file docd-uib.ide
    Using IDE file netwi-nu.ide
    Using IDE file psdl-dw.ide
    Using IDE file emot-bib.ide
    Using IDE file emot-bkm.ide
    Using IDE file emot-bkp.ide
    Using IDE file hawke-zf.ide
    Using IDE file docd-urj.ide
    Using IDE file keylo-xt.ide
    Using IDE file offdde-j.ide
    Using IDE file emot-blh.ide
    Using IDE file emot-bli.ide
    Using IDE file phis-gcp.ide
    Using IDE file msil-mxy.ide
    Using IDE file dneti-jc.ide
    Using IDE file msil-mxz.ide
    Using IDE file nanoc-pg.ide
    Using IDE file azoru-cm.ide
    Using IDE file lokib-du.ide
    Using IDE file hawke-zi.ide
    Using IDE file formb-sj.ide
    Using IDE file fare-iyd.ide
    Using IDE file emot-blq.ide
    Using IDE file azoru-cq.ide
    Using IDE file steal-we.ide
    Using IDE file teslaa-r.ide
    Using IDE file bank-gys.ide
    Using IDE file formb-sl.ide
    Using IDE file vb-kmp.ide
    Using IDE file retefe-p.ide
    Using IDE file wont-afq.ide
    Using IDE file nemty-d.ide
    Using IDE file teslaa-y.ide
    Using IDE file emot-bms.ide
    Using IDE file veil-aj.ide
    Using IDE file emot-bmw.ide
    Using IDE file azoru-cw.ide
    Using IDE file psagen-l.ide
    Using IDE file emot-bna.ide
    Using IDE file age-bckl.ide
    Using IDE file msil-mzc.ide
    Using IDE file dneti-ke.ide
    Using IDE file keylo-yg.ide
    Using IDE file fare-ipq.ide
    Using IDE file tesla-f.ide
    Using IDE file steale-k.ide
    Using IDE file swror-da.ide
    Using IDE file tesla-ad.ide
    Using IDE file hawke-zo.ide
    Using IDE file emot-bnj.ide
    Using IDE file fare-jaj.ide
    Using IDE file blada-cr.ide
    Using IDE file lokib-da.ide
    Using IDE file hawke-zy.ide
    Using IDE file danab-am.ide
    Using IDE file tesla-an.ide
    Using IDE file emot-bmc.ide
    Using IDE file nanoc-zi.ide
    Using IDE file emot-bnv.ide
    Using IDE file emot-bob.ide
    Using IDE file steale-r.ide
    Using IDE file emot-boi.ide
    Using IDE file fare-jbe.ide
    Using IDE file emot-bok.ide
    Using IDE file steale-w.ide
    Using IDE file emot-bol.ide
    Using IDE file tesla-bi.ide
    Using IDE file recam-eg.ide
    Using IDE file rtfd-apa.ide
    Using IDE file tesla-b.ide
    Using IDE file rtfdr-ja.ide
    Using IDE file nanoc-yr.ide
    Using IDE file dneti-lr.ide
    Using IDE file rans-frg.ide
    Using IDE file tesla-bl.ide
    Using IDE file hawkey-m.ide
    Using IDE file tesla-bu.ide
    Using IDE file sinow-cl.ide
    Using IDE file docd-wbk.ide
    Using IDE file fake-hhk.ide
    Using IDE file dneti-ly.ide
    Using IDE file emot-bpl.ide
    Using IDE file emot-bpm.ide
    Using IDE file tesla-ct.ide
    Using IDE file swror-dd.ide
    Using IDE file recam-ek.ide
    Using IDE file lokib-ee.ide
    Using IDE file nanoc-zx.ide
    Using IDE file criakl-i.ide
    Using IDE file kelih-br.ide
    Using IDE file rans-frj.ide
    Using IDE file hawke-aa.ide
    Using IDE file rans-frm.ide
    Using IDE file scarab-s.ide
    Using IDE file tesla-dl.ide
    Using IDE file rans-frp.ide
    Using IDE file docd-wdq.ide
    Using IDE file msil-nan.ide
    Using IDE file zbot-ntj.ide
    Using IDE file dwnl-yyo.ide
    Using IDE file mdro-ixf.ide
    Using IDE file zbot-ntk.ide
    Using IDE file nano-aae.ide
    Using IDE file mdro-ixh.ide
    Using IDE file mht-f.ide
    Using IDE file msili-dq.ide
    Using IDE file rtfd-aqs.ide
    Using IDE file remco-nc.ide
    Using IDE file tofse-da.ide
    Using IDE file steal-ah.ide
    Using IDE file zbot-nuh.ide
    Using IDE file hawke-am.ide
    Using IDE file tesla-i.ide
    Using IDE file azoru-cy.ide
    Using IDE file emot-bsa.ide
    Using IDE file distea-b.ide
    Using IDE file zbot-nun.ide
    Using IDE file formb-tp.ide
    Using IDE file tesla-et.ide
    Using IDE file docph-ix.ide
    Using IDE file msil-nbp.ide
    Using IDE file docd-wdf.ide
    Using IDE file blada-eu.ide
    Using IDE file rans-frk.ide
    Using IDE file tesla-ew.ide
    Using IDE file tesla-ex.ide
    Using IDE file phis-gjb.ide
    Using IDE file msil-nbt.ide
    Using IDE file rtfd-ark.ide
    Using IDE file nano-aaq.ide
    Using IDE file darkc-iu.ide
    Using IDE file emot-bsm.ide
    Using IDE file blada-fb.ide
    Using IDE file rans-frz.ide
    Using IDE file tesla-fe.ide
    Using IDE file trolde-g.ide
    Using IDE file phis-gkb.ide
    Using IDE file fake-hhy.ide
    Using IDE file emot-bti.ide
    Using IDE file drid-acg.ide
    Using IDE file dneti-nc.ide
    Using IDE file phis-gkg.ide
    Using IDE file nano-abg.ide
    Using IDE file mdro-ixr.ide
    Using IDE file inje-etd.ide
    Using IDE file emot-bue.ide
    Using IDE file hawke-ax.ide
    Using IDE file phis-gkp.ide
    Using IDE file zbot-nvv.ide
    Using IDE file psdl-ec.ide
    Using IDE file hawke-ay.ide
    Using IDE file steal-at.ide
    Using IDE file emot-buk.ide
    Using IDE file tesla-gd.ide
    Using IDE file fare-jdk.ide
    Using IDE file darkc-iw.ide
    Using IDE file trick-ur.ide
    Using IDE file mdro-ixu.ide
    Using IDE file msili-ed.ide
    Using IDE file keylo-ys.ide


    0 files scanned in 6 seconds.
    No viruses were discovered.
    End of Scan.

     

     

    Which came back to quickly, to scan all those files. 

    Next I ran  savscan /mnt/*  


    [root@public-cloud-test ~]# savscan /mnt/*
    SAVScan virus detection utility
    Version 5.63.0 [Linux/AMD64]
    Virus data version 5.69, October 2019
    Includes detection for 43354067 viruses, Trojans and worms
    Copyright (c) 1989-2019 Sophos Limited. All rights reserved.

    System time 01:31:06 PM, System date 12 November 2019

    IDE directory is: /opt/sophos-av/lib/sav

    Using IDE file dneti-ie.ide
    Using IDE file spy-ayj.ide
    Using IDE file qbot-fd.ide
    Using IDE file bckd-rwg.ide
    Using IDE file docd-vvm.ide
    Using IDE file ryuk-v.ide
    Using IDE file qakbo-dk.ide
    Using IDE file trick-sx.ide
    Using IDE file rtfd-alm.ide
    Using IDE file docd-vwh.ide
    Using IDE file drid-acd.ide
    Using IDE file keylo-xu.ide
    Using IDE file emot-bjo.ide
    Using IDE file blada-rx.ide
    Using IDE file emot-bfj.ide
    Using IDE file hawke-uc.ide
    Using IDE file zbot-nhi.ide
    Using IDE file msil-miz.ide
    Using IDE file emot-bjp.ide
    Using IDE file steal-sa.ide
    Using IDE file delf-hda.ide
    Using IDE file phis-fjh.ide
    Using IDE file htmld-kw.ide
    Using IDE file nemty-c.ide
    Using IDE file delf-hds.ide
    Using IDE file phis-fkc.ide
    Using IDE file zbot-nid.ide
    Using IDE file qakbo-dl.ide
    Using IDE file azoru-ck.ide
    Using IDE file phorpi-o.ide
    Using IDE file docd-uib.ide
    Using IDE file netwi-nu.ide
    Using IDE file psdl-dw.ide
    Using IDE file emot-bib.ide
    Using IDE file emot-bkm.ide
    Using IDE file emot-bkp.ide
    Using IDE file hawke-zf.ide
    Using IDE file docd-urj.ide
    Using IDE file keylo-xt.ide
    Using IDE file offdde-j.ide
    Using IDE file emot-blh.ide
    Using IDE file emot-bli.ide
    Using IDE file phis-gcp.ide
    Using IDE file msil-mxy.ide
    Using IDE file dneti-jc.ide
    Using IDE file msil-mxz.ide
    Using IDE file nanoc-pg.ide
    Using IDE file azoru-cm.ide
    Using IDE file lokib-du.ide
    Using IDE file hawke-zi.ide
    Using IDE file formb-sj.ide
    Using IDE file fare-iyd.ide
    Using IDE file emot-blq.ide
    Using IDE file azoru-cq.ide
    Using IDE file steal-we.ide
    Using IDE file teslaa-r.ide
    Using IDE file bank-gys.ide
    Using IDE file formb-sl.ide
    Using IDE file vb-kmp.ide
    Using IDE file retefe-p.ide
    Using IDE file wont-afq.ide
    Using IDE file nemty-d.ide
    Using IDE file teslaa-y.ide
    Using IDE file emot-bms.ide
    Using IDE file veil-aj.ide
    Using IDE file emot-bmw.ide
    Using IDE file azoru-cw.ide
    Using IDE file psagen-l.ide
    Using IDE file emot-bna.ide
    Using IDE file age-bckl.ide
    Using IDE file msil-mzc.ide
    Using IDE file dneti-ke.ide
    Using IDE file keylo-yg.ide
    Using IDE file fare-ipq.ide
    Using IDE file tesla-f.ide
    Using IDE file steale-k.ide
    Using IDE file swror-da.ide
    Using IDE file tesla-ad.ide
    Using IDE file hawke-zo.ide
    Using IDE file emot-bnj.ide
    Using IDE file fare-jaj.ide
    Using IDE file blada-cr.ide
    Using IDE file lokib-da.ide
    Using IDE file hawke-zy.ide
    Using IDE file danab-am.ide
    Using IDE file tesla-an.ide
    Using IDE file emot-bmc.ide
    Using IDE file nanoc-zi.ide
    Using IDE file emot-bnv.ide
    Using IDE file emot-bob.ide
    Using IDE file steale-r.ide
    Using IDE file emot-boi.ide
    Using IDE file fare-jbe.ide
    Using IDE file emot-bok.ide
    Using IDE file steale-w.ide
    Using IDE file emot-bol.ide
    Using IDE file tesla-bi.ide
    Using IDE file recam-eg.ide
    Using IDE file rtfd-apa.ide
    Using IDE file tesla-b.ide
    Using IDE file rtfdr-ja.ide
    Using IDE file nanoc-yr.ide
    Using IDE file dneti-lr.ide
    Using IDE file rans-frg.ide
    Using IDE file tesla-bl.ide
    Using IDE file hawkey-m.ide
    Using IDE file tesla-bu.ide
    Using IDE file sinow-cl.ide
    Using IDE file docd-wbk.ide
    Using IDE file fake-hhk.ide
    Using IDE file dneti-ly.ide
    Using IDE file emot-bpl.ide
    Using IDE file emot-bpm.ide
    Using IDE file tesla-ct.ide
    Using IDE file swror-dd.ide
    Using IDE file recam-ek.ide
    Using IDE file lokib-ee.ide
    Using IDE file nanoc-zx.ide
    Using IDE file criakl-i.ide
    Using IDE file kelih-br.ide
    Using IDE file rans-frj.ide
    Using IDE file hawke-aa.ide
    Using IDE file rans-frm.ide
    Using IDE file scarab-s.ide
    Using IDE file tesla-dl.ide
    Using IDE file rans-frp.ide
    Using IDE file docd-wdq.ide
    Using IDE file msil-nan.ide
    Using IDE file zbot-ntj.ide
    Using IDE file dwnl-yyo.ide
    Using IDE file mdro-ixf.ide
    Using IDE file zbot-ntk.ide
    Using IDE file nano-aae.ide
    Using IDE file mdro-ixh.ide
    Using IDE file mht-f.ide
    Using IDE file msili-dq.ide
    Using IDE file rtfd-aqs.ide
    Using IDE file remco-nc.ide
    Using IDE file tofse-da.ide
    Using IDE file steal-ah.ide
    Using IDE file zbot-nuh.ide
    Using IDE file hawke-am.ide
    Using IDE file tesla-i.ide
    Using IDE file azoru-cy.ide
    Using IDE file emot-bsa.ide
    Using IDE file distea-b.ide
    Using IDE file zbot-nun.ide
    Using IDE file formb-tp.ide
    Using IDE file tesla-et.ide
    Using IDE file docph-ix.ide
    Using IDE file msil-nbp.ide
    Using IDE file docd-wdf.ide
    Using IDE file blada-eu.ide
    Using IDE file rans-frk.ide
    Using IDE file tesla-ew.ide
    Using IDE file tesla-ex.ide
    Using IDE file phis-gjb.ide
    Using IDE file msil-nbt.ide
    Using IDE file rtfd-ark.ide
    Using IDE file nano-aaq.ide
    Using IDE file darkc-iu.ide
    Using IDE file emot-bsm.ide
    Using IDE file blada-fb.ide
    Using IDE file rans-frz.ide
    Using IDE file tesla-fe.ide
    Using IDE file trolde-g.ide
    Using IDE file phis-gkb.ide
    Using IDE file fake-hhy.ide
    Using IDE file emot-bti.ide
    Using IDE file drid-acg.ide
    Using IDE file dneti-nc.ide
    Using IDE file phis-gkg.ide
    Using IDE file nano-abg.ide
    Using IDE file mdro-ixr.ide
    Using IDE file inje-etd.ide
    Using IDE file emot-bue.ide
    Using IDE file hawke-ax.ide
    Using IDE file phis-gkp.ide
    Using IDE file zbot-nvv.ide
    Using IDE file psdl-ec.ide
    Using IDE file hawke-ay.ide
    Using IDE file steal-at.ide
    Using IDE file emot-buk.ide
    Using IDE file tesla-gd.ide
    Using IDE file fare-jdk.ide
    Using IDE file darkc-iw.ide
    Using IDE file trick-ur.ide
    Using IDE file mdro-ixu.ide
    Using IDE file msili-ed.ide
    Using IDE file keylo-ys.ide

     

    Could not open /mnt/*

    0 files scanned in 6 seconds.
    1 error was encountered.
    No viruses were discovered.
    End of Scan.

     

    Which here I get the error. 

     

    Just want to know what options I need to add so I am sure I scanning all content in /mnt

     

    Also is there a way to install Sophos for Linux bypassing all the questions it asks when installing?  

  • 0 in reply to Anthony Lenzo

    Hello Anthony Lenzo,

    Could not open /mnt/*
    is the message you get when the /mnt/ directory is empty. What does ls /mnt/* give?

    install [...] bypassing all the questions
    Please see the articles about mkinstpkg and the Additional installer options for install.sh and mkinstpkg.

    Christian

  • 0 in reply to QC

    Hi Christian 

     

    Nope the /mnt directory is full of content 

    root@public-cloud-test /]# cd /mnt
    [root@public-cloud-test mnt]# ll
    total 104
    dr-xr-xr-x. 20 root root 4096 Apr 23 2019 .
    dr-xr-xr-x. 37 root root 4096 Nov 13 08:53 ..
    lrwxrwxrwx. 1 root root 7 Apr 23 2019 bin -> usr/bin
    dr-xr-xr-x. 4 root root 4096 Apr 23 2019 boot
    drwxr-xr-x. 2 root root 4096 Apr 23 2019 dev
    drwxr-xr-x. 116 root root 12288 Apr 23 2019 etc
    drwxr-xr-x. 3 root root 4096 Apr 23 2019 export
    -rw-r--r--. 1 root root 6 Apr 23 2019 fsckoptions
    drwxr-xr-x. 6 root root 4096 Apr 23 2019 home
    lrwxrwxrwx. 1 root root 7 Apr 23 2019 lib -> usr/lib
    lrwxrwxrwx. 1 root root 9 Apr 23 2019 lib64 -> usr/lib64
    drwx------. 2 root root 16384 Apr 23 2019 lost+found
    drwxr-xr-x. 2 root root 4096 Dec 14 2017 media
    drwxr-xr-x. 3 root root 4096 Apr 23 2019 mnt
    drwxr-xr-x. 2 root root 4096 Apr 23 2019 nfs_root
    drwxr-xr-x. 5 root root 4096 Apr 23 2019 opt
    drwxr-xr-x. 2 root root 4096 Apr 23 2019 proc
    dr-xr-x---. 5 root root 4096 Apr 23 2019 root
    drwxr-xr-x. 2 root root 4096 Apr 23 2019 run
    lrwxrwxrwx. 1 root root 8 Apr 23 2019 sbin -> usr/sbin
    drwxr-xr-x. 2 root root 4096 Dec 14 2017 srv
    drwxr-xr-x. 2 root root 4096 Apr 23 2019 sys
    drwxrwxrwt. 12 root root 4096 Apr 23 2019 tmp
    drwxr-xr-x. 14 root root 4096 Apr 23 2019 usr
    drwxr-xr-x. 24 root root 4096 Apr 23 2019 var

     

    For the scan of /mnt/* 

    [root@public-cloud-test /]# savscan /mnt/*
    SAVScan virus detection utility
    Version 5.63.0 [Linux/AMD64]
    Virus data version 5.69, October 2019
    Includes detection for 43354186 viruses, Trojans and worms
    Copyright (c) 1989-2019 Sophos Limited. All rights reserved.

    System time 09:31:45 AM, System date 13 November 2019

    IDE directory is: /opt/sophos-av/lib/sav

     

    <list all the ".ide" files program used>

    Quick Scanning

    Could not open /mnt/bin
    Could not open /mnt/boot
    Could not open /mnt/dev
    Could not open /mnt/etc
    Could not open /mnt/export
    Could not open /mnt/fsckoptions
    Could not open /mnt/home
    Could not open /mnt/lib
    Could not open /mnt/lib64
    Could not open /mnt/lost+found
    Could not open /mnt/media
    Could not open /mnt/mnt
    Could not open /mnt/nfs_root
    Could not open /mnt/opt
    Could not open /mnt/proc
    Could not open /mnt/root
    Could not open /mnt/run
    Could not open /mnt/sbin
    Could not open /mnt/srv
    Could not open /mnt/sys
    Could not open /mnt/tmp
    Could not open /mnt/usr
    Could not open /mnt/var

    0 files scanned in 12 seconds.
    23 errors were encountered.
    No viruses were discovered.
    End of Scan.
    [root@public-cloud-test /]#

     

    When i mount the qcow2 file  i set it to "read-only".  I don't think that make any difference. 

    guestmount -a ems.qcow2 -i --ro /mnt

     

    This what happens when I remove the "*"  from the command 

     

    [root@public-cloud-test mnt]# savscan /mnt
    SAVScan virus detection utility
    Version 5.63.0 [Linux/AMD64]
    Virus data version 5.69, October 2019
    Includes detection for 43354186 viruses, Trojans and worms
    Copyright (c) 1989-2019 Sophos Limited. All rights reserved.

    System time 09:35:56 AM, System date 13 November 2019

    IDE directory is: /opt/sophos-av/lib/sav

    <list all the ".ide" files program used>

    Quick Scanning

    Could not open /mnt

    0 files scanned in 5 seconds.
    1 error was encountered.
    No viruses were discovered.
    End of Scan.
    [root@public-cloud-test mnt]# ls -l /mnt
    total 96
    lrwxrwxrwx. 1 root root 7 Apr 23 2019 bin -> usr/bin
    dr-xr-xr-x. 4 root root 4096 Apr 23 2019 boot
    drwxr-xr-x. 2 root root 4096 Apr 23 2019 dev
    drwxr-xr-x. 116 root root 12288 Apr 23 2019 etc
    drwxr-xr-x. 3 root root 4096 Apr 23 2019 export
    -rw-r--r--. 1 root root 6 Apr 23 2019 fsckoptions
    drwxr-xr-x. 6 root root 4096 Apr 23 2019 home
    lrwxrwxrwx. 1 root root 7 Apr 23 2019 lib -> usr/lib
    lrwxrwxrwx. 1 root root 9 Apr 23 2019 lib64 -> usr/lib64
    drwx------. 2 root root 16384 Apr 23 2019 lost+found
    drwxr-xr-x. 2 root root 4096 Dec 14 2017 media
    drwxr-xr-x. 3 root root 4096 Apr 23 2019 mnt
    drwxr-xr-x. 2 root root 4096 Apr 23 2019 nfs_root
    drwxr-xr-x. 5 root root 4096 Apr 23 2019 opt
    drwxr-xr-x. 2 root root 4096 Apr 23 2019 proc
    dr-xr-x---. 5 root root 4096 Apr 23 2019 root
    drwxr-xr-x. 2 root root 4096 Apr 23 2019 run
    lrwxrwxrwx. 1 root root 8 Apr 23 2019 sbin -> usr/sbin
    drwxr-xr-x. 2 root root 4096 Dec 14 2017 srv
    drwxr-xr-x. 2 root root 4096 Apr 23 2019 sys
    drwxrwxrwt. 12 root root 4096 Apr 23 2019 tmp
    drwxr-xr-x. 14 root root 4096 Apr 23 2019 usr
    drwxr-xr-x. 24 root root 4096 Apr 23 2019 var

  • 0 in reply to Anthony Lenzo

    Hello ,

    I'm not familiar with guestmount, meanwhile I've found out it uses FUSE.

    While I have no idea what the actual cause is it seems that savscan can't "see" the files/directories under /mnt. Please note that when you use savscan /mnt/* the shell expands the *. If you use savscan --expand-wildcards "/mnt/*"  it should give the same result - if not this would support my assumption. Perhaps   has some advice.

    Christian

Reply
  • 0 in reply to Anthony Lenzo

    Hello ,

    I'm not familiar with guestmount, meanwhile I've found out it uses FUSE.

    While I have no idea what the actual cause is it seems that savscan can't "see" the files/directories under /mnt. Please note that when you use savscan /mnt/* the shell expands the *. If you use savscan --expand-wildcards "/mnt/*"  it should give the same result - if not this would support my assumption. Perhaps   has some advice.

    Christian

Children
  • 0 in reply to QC

    Hi,

     

    It looks like access is restricted to root? Can you read any of the files under /mnt?

    savscan using sgid permissions, so may not be able to access files that require group access to read.

  • 0 in reply to DouglasLeeder

    Hi Guys 

     

    i am running savscan as "root"  , and I able to list the content in /mnt 

    [root@public-cloud-test mnt]# id
    uid=0(root) gid=0(root) groups=0(root) context=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023
    [root@public-cloud-test mnt]# ls -l /mnt
    total 96
    lrwxrwxrwx. 1 root root 7 Apr 23 2019 bin -> usr/bin
    dr-xr-xr-x. 4 root root 4096 Apr 23 2019 boot
    drwxr-xr-x. 2 root root 4096 Apr 23 2019 dev
    drwxr-xr-x. 116 root root 12288 Apr 23 2019 etc
    drwxr-xr-x. 3 root root 4096 Apr 23 2019 export
    -rw-r--r--. 1 root root 6 Apr 23 2019 fsckoptions
    drwxr-xr-x. 6 root root 4096 Apr 23 2019 home
    lrwxrwxrwx. 1 root root 7 Apr 23 2019 lib -> usr/lib
    lrwxrwxrwx. 1 root root 9 Apr 23 2019 lib64 -> usr/lib64
    drwx------. 2 root root 16384 Apr 23 2019 lost+found
    drwxr-xr-x. 2 root root 4096 Dec 14 2017 media
    drwxr-xr-x. 3 root root 4096 Apr 23 2019 mnt
    drwxr-xr-x. 2 root root 4096 Apr 23 2019 nfs_root
    drwxr-xr-x. 5 root root 4096 Apr 23 2019 opt
    drwxr-xr-x. 2 root root 4096 Apr 23 2019 proc
    dr-xr-x---. 5 root root 4096 Apr 23 2019 root
    drwxr-xr-x. 2 root root 4096 Apr 23 2019 run
    lrwxrwxrwx. 1 root root 8 Apr 23 2019 sbin -> usr/sbin
    drwxr-xr-x. 2 root root 4096 Dec 14 2017 srv
    drwxr-xr-x. 2 root root 4096 Apr 23 2019 sys
    drwxrwxrwt. 12 root root 4096 Apr 23 2019 tmp
    drwxr-xr-x. 14 root root 4096 Apr 23 2019 usr
    drwxr-xr-x. 24 root root 4096 Apr 23 2019 var
    [root@public-cloud-test mnt]# ls -l /mnt/boot
    total 224008
    -rw-r--r--. 1 root root 151922 Dec 19 2018 config-3.10.0-957.5.1.el7.x86_64
    -rw-r--r--. 1 root root 152185 Dec 19 2018 config-3.10.0-957.5.1.el7.x86_64.debug
    drwxr-xr-x. 3 root root 16 Apr 23 2019 efi
    drwx------. 5 root root 106 Apr 23 2019 grub2
    -rw-------. 1 root root 62984062 Apr 23 2019 initramfs-0-rescue-12345678abcdabcdaaaa230419071057.img
    -rw-------. 1 root root 62241614 Apr 23 2019 initramfs-3.10.0-957.5.1.el7.x86_64.debug.img
    -rw-------. 1 root root 61522803 Apr 23 2019 initramfs-3.10.0-957.5.1.el7.x86_64.img
    -rw-------. 1 root root 13360268 Apr 23 2019 initramfs-3.10.0-957.5.1.el7.x86_64kdump.img
    -rw-r--r--. 1 root root 316165 Dec 19 2018 symvers-3.10.0-957.5.1.el7.x86_64.debug.gz
    -rw-r--r--. 1 root root 314087 Dec 19 2018 symvers-3.10.0-957.5.1.el7.x86_64.gz
    -rw-------. 1 root root 3544044 Dec 19 2018 System.map-3.10.0-957.5.1.el7.x86_64
    -rw-------. 1 root root 3710282 Dec 19 2018 System.map-3.10.0-957.5.1.el7.x86_64.debug
    -rwxr-xr-x. 1 root root 7205168 Apr 23 2019 vmlinuz-0-rescue-12345678abcdabcdaaaa230419071057
    -rwxr-xr-x. 1 root root 6644016 Dec 19 2018 vmlinuz-3.10.0-957.5.1.el7.x86_64
    -rwxr-xr-x. 1 root root 7205168 Dec 19 2018 vmlinuz-3.10.0-957.5.1.el7.x86_64.debug
    [root@public-cloud-test mnt]# ls -l /mnt/opt
    total 12
    drwxr-xr-x. 15 502 reseng 4096 Apr 23 2019 oracle
    drwxr-xr-x. 3 root root 4096 Apr 23 2019 ORCLfmap
    [root@public-cloud-test mnt]# ls -l oracle
    ls: cannot access oracle: No such file or directory
    [root@public-cloud-test mnt]# ls -l /mnt/opt/oracle
    total 52
    drwxrwxr-x. 3 502 reseng 4096 Apr 23 2019 admin
    drwxr-x---. 3 502 reseng 4096 Apr 23 2019 audit
    drwxr-xr-x. 5 502 reseng 4096 Apr 23 2019 backup
    drwxr-x---. 4 502 reseng 4096 Apr 23 2019 cfgtoollogs
    drwxr-xr-x. 2 502 reseng 4096 Apr 23 2019 checkpoints
    drwxrwxr-x. 19 502 reseng 4096 Apr 23 2019 diag
    drwxrwxr-x. 3 502 reseng 4096 Apr 23 2019 oradata
    drwxrwx---. 5 502 reseng 4096 Apr 23 2019 oraInventory
    drwxr-xr-x. 3 502 reseng 4096 Apr 23 2019 orarepl
    drwxr-xr-x. 3 502 reseng 4096 Apr 23 2019 orasql
    drwxrwxrwx. 2 502 reseng 4096 Apr 23 2019 pm_stats
    drwxr-xr-x. 3 502 reseng 4096 Apr 23 2019 product
    -rw-r--r--. 1 502 reseng 1261 Apr 23 2019 updateMemorySizing.sh.log
    [root@public-cloud-test mnt]#

  • 0 in reply to Anthony Lenzo

    One more thing 

    I try mounting the qcow2 file with Read/Write option. I still get the same error.   Here the info about guestmount   (http://ask.xmodulo.com/mount-qcow2-disk-image-linux.html)

     

    [root@public-cloud-test /]# umount /mnt

    [root@public-cloud-test /]# guestmount -a ems.qcow2 -i --rw /mnt

    [root@public-cloud-test /]# savscan /mnt
    SAVScan virus detection utility
    Version 5.63.0 [Linux/AMD64]
    Virus data version 5.69, October 2019
    Includes detection for 43354291 viruses, Trojans and worms
    Copyright (c) 1989-2019 Sophos Limited. All rights reserved.

    System time 09:22:21 AM, System date 14 November 2019

    IDE directory is: /opt/sophos-av/lib/sav

     

    <list all the ".ide" files program used>

    Quick Scanning

    Could not open /mnt

    0 files scanned in 6 seconds.
    1 error was encountered.
    No viruses were discovered.
    End of Scan.
    [root@public-cloud-test /]# id
    uid=0(root) gid=0(root) groups=0(root) context=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023
    [root@public-cloud-test /]# hostinfo
    UNAME: Linux public-cloud-test.novalocal 3.10.0-693.el7.x86_64 #1 SMP Thu Jul 6 19:56:57 EDT 2017 x86_64 x86_64 x86_64 GNU/Linux
    DISTRO: Red Hat Enterprise Linux Server release 7.6 (Maipo)
    CPU: 4 cores, Intel Xeon E312xx (Sandy Bridge, IBRS update)
    MEM: 8.01 GB (Swap: 0.00 GB)
    [root@public-cloud-test ~]#

  • 0 in reply to Anthony Lenzo

    The problem may be that fuse is blocking root from accessing the files.

     

    I don't know guestmount so I don't know the access permissions. Unfortunately the sgid on sweep, and suid on savscan makes debugging this sort of problem quite difficult.

     

    sweep is clearly having problems reading both the directories and the files.

    Can you read the files normally?

  • 0 in reply to DouglasLeeder

    Hello 

    I figure out a solution to my problem.

    1. Ensure KVM is running on the VM/Server  apparently guestmount requires this.

    2. Edit the /etc/fuse.conf file 

    [root@public-cloud-test etc]# cat fuse.conf
    # mount_max = 1000
    user_allow_other  <-- Uncomment out this line 

    3. Run guestmount command to mount the qcow2 file   

    guestmount  -o allow_other -a  "<qcow2 file> -i  -ro  <mount location>   (Note you can also use --rw  for read/write )

    4. Then I scan the mount qcow2 file 

     Example savscan  /mnt 

    5 Finally unmount the qcow2 file 

    guestumount <mount location> 

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