TR/Agent.AGNY - Trojan

See also

Summary

Full description

Statistics

Virus:	TR/Agent.AGNY
Date discovered:	24/01/2008
Type:	Trojan
In the wild:	Yes
Reported Infections:	Low
Distribution Potential:	Low to medium
Damage Potential:	Low to medium
Static file:	Yes
File size:	205.449 Bytes
MD5 checksum:	0A834d4813f7b44024b2e68d20957aee
IVDF version:	7.00.02.41 - Thu, 24 Jan 2008 12:12 (GMT+1)

General Method of propagation:
   • Mapped network drives

Aliases:
   • Mcafee: W32/Autorun.worm.g
   • Kaspersky: Trojan-Downloader.Win32.Agent.hzy
   • F-Secure: Trojan-Downloader.Win32.Agent.hzy
   • Eset: Win32/AutoRun.HL
   • Bitdefender: Trojan.Agent.AGNY

Platforms / OS:
   • Windows 95
   • Windows 98
   • Windows 98 SE
   • Windows NT
   • Windows ME
   • Windows 2000
   • Windows XP
   • Windows 2003

Side effects:
   • Drops files
   • Lowers security settings

Files It copies itself to the following locations:
   • c:\windows\system\lsass.exe
   • C:\RECYCLER\Recycler\AutoLaunch.exe
   • %TEMPDIR%\services.exe

It creates the following directory:
   • %TEMPDIR%\WinSecurityUpd

The following files are created:

– drive:\autorun.inf This is a non malicious text file with the following content:
   • %code that runs malware%

– %TEMPDIR%\WinSecurityUpd\ms_auto This is a non malicious text file with the following content:
   • %code that runs malware%

– %TEMPDIR%\WinSecurityUpd\ms_drvlst This is a non malicious text file with the following content:
   • ABCDEFGHIJKLMNOPQRSTUVWXYZ

– %TEMPDIR%\WinSecurityUpd\udpate~1.tmp This is a non malicious text file with the following content:
   • file

– %TEMPDIR%\csrss.bat This is a non malicious text file with the following content:
   • %TEMPDIR%\csrss.bat

– %TEMPDIR%\ltmpp.bat Furthermore it gets executed after it was fully created. This batch file is used to delete a file.
– %TEMPDIR%\lsassexe.bat Furthermore it gets executed after it was fully created. This batch file is used to delete a file.

It tries to executes the following files:

– Filename:
   • %SYSDIR%\netsh.exe
using the following command line arguments: firewall set opmode disable

– Filename:
   • %SYSDIR%\cmd.exe
using the following command line arguments: /c if exist %TEMPDIR%\csrss.bat call %TEMPDIR%\csrss.bat

– Filename:
   • %SYSDIR%\ping.exe
using the following command line arguments: google.com > %TEMPDIR%\ping2.log

File details Runtime packer:
In order to aggravate detection and reduce size of the file it is packed with the following runtime packer:
• UPX

See a brief description here.

Description inserted by Andrei Gherman on Thu, 19 Jun 2008 09:49 (GMT+1)
Description updated by Andrei Gherman on Thu, 19 Jun 2008 10:10 (GMT+1)

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