[AMaViS-user] amavisd-new 2.2 virus not found (unzip error)

This is a discussion on [AMaViS-user] amavisd-new 2.2 virus not found (unzip error) within the Amavis User forums, part of the Anti-Spam and Anti-Virus Related Forums category; This is a multi-part message in MIME format. ------=_NextPart_000_000A_01C51E64.34A77600 Content-Type: text/plain; charset="iso-8859-2&...


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Old 03-04-2005
friiz
 
Posts: n/a
Default [AMaViS-user] amavisd-new 2.2 virus not found (unzip error)

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hi!

i have two diff amavis setup

1. postfix amavisd-new 2.2.0 (double extensios banned)

do_executable/do_unzip failed, ignoring: format error: bad signature: =
0x00905a4d at offset 0 ...
do_executable/do_unrar failed, ignoring: format error: bad signature: =
0x00905a4d at offset 0 ...
p.path BANNED:1: "P=3Dp003,L=3D1,M=3Dmultipart/mixed | =
P=3Dp002,L=3D1/2,M=3Dapplication/octet-stream,T=3Dzip,N=3Dpatch_help-text=
..zipp | =3Dp004,L=3D1/2/1,T=3Dexe,T=3Dexe-ms,N=3Ddoc_data-text.txt. =
pif

banned because of double extension

2. dual sendmail setup amavisd-new 2.2.1 (double extensios allowed)

this one doest not cach the same virus here is the log report

do_executable/do_unzip failed, ignoring: format error: bad signature: =
0x00905a4d at offset 0 ...
do_executable/do_unrar failed, ignoring: format error: bad signature: =
0x00905a4d at offset 0 ...
.... FWD via SMTP: [127.0.0.1]:10025...

the attachment look like does not compressed at all i see it's starting =
with exe header "MZ....This program cannot be run in DOS mode..."

if i run unzip on the file it uncompress without any error

clamav itself can find the virus in the zip and in the uncompressed =
txt.pif
Worm.Sober.K

thanks


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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-2">
<META content=3D"MSHTML 6.00.2900.2604" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>hi!</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>i have two diff amavis =
setup</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>1. postfix amavisd-new 2.2.0 (double =
extensios=20
banned)</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>
<DIV><FONT face=3DArial size=3D2>do_executable/do_unzip failed, =
ignoring: format=20
error: bad signature: 0x00905a4d at offset 0 =
....<BR>do_executable/do_unrar=20
failed, ignoring: format error: bad signature: 0x00905a4d at offset 0=20
....</FONT></DIV></FONT></DIV>
<DIV><FONT face=3DArial size=3D2>p.path BANNED:1: =
"P=3Dp003,L=3D1,M=3Dmultipart/mixed |=20
P=3Dp002,L=3D1/2,M=3Dapplication/octet-stream,T=3Dzip,N=3Dpatch_help-text=
..zipp |=20
=3Dp004,L=3D1/2/1,T=3Dexe,T=3Dexe-ms,N=3Ddoc_data-text.txt.&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs p;&nbsp;&nbsp;&nbsp;&nb=
sp;=20
pif</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>banned because of double =
extension</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>
<DIV><FONT face=3DArial size=3D2>2. dual sendmail setup&nbsp;amavisd-new =
2.2.1=20
(double extensios allowed)</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>this one doest not cach&nbsp;the=20
same&nbsp;virus&nbsp; here is the log report</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>
<DIV><FONT face=3DArial size=3D2>do_executable/do_unzip failed, =
ignoring: format=20
error: bad signature: 0x00905a4d at offset 0 =
....<BR>do_executable/do_unrar=20
failed, ignoring: format error: bad signature: 0x00905a4d at offset 0=20
....</FONT></DIV></FONT></DIV>
<DIV>...&nbsp;FWD via SMTP: [127.0.0.1]:10025...</DIV>
<DIV>&nbsp;</DIV>
<DIV>the attachment look like does not compressed at all i see it's =
starting=20
with exe header "MZ....This program cannot be run in DOS mode..."</DIV>
<DIV>&nbsp;</DIV>
<DIV>if i run unzip on the file it uncompress without any error</DIV>
<DIV>&nbsp;</DIV>
<DIV>clamav itself can find the virus in the zip and in the uncompressed =

txt.pif</DIV>
<DIV>Worm.Sober.K</DIV>
<DIV>&nbsp;</DIV>
<DIV>thanks</DIV>
<DIV>&nbsp;</DIV>
<DIV></FONT>&nbsp;</DIV></DIV></BODY></HTML>

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