TR/PSW.QQPass.LR.1 - Trojan

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Summary

Full description

Statistics

Virus:	TR/PSW.QQPass.LR.1
Date discovered:	04/10/2006
Type:	Trojan
In the wild:	No
Reported Infections:	Low
Distribution Potential:	Low
Damage Potential:	Medium
Static file:	Yes
File size:	166.520 Bytes
MD5 checksum:	e0c235c641bc571a457b58c7b0fa3930
VDF version:	6.36.00.68 - Fri, 29 Sep 2006 09:29 (GMT+1)
IVDF version:	6.36.00.82 - Mon, 09 Oct 2006 08:10 (GMT+1)

General Method of propagation:
   • No own spreading routine

Aliases:
   • Mcafee: PWS-QQRob.dll
   • Kaspersky: Trojan-PSW.Win32.Delf.pb
   • TrendMicro: TSPY_QQPASS.ADY
   • Sophos: Troj/QQRob-ZG
   • Eset: Win32/PSW.QQPass.JF
   • Bitdefender: Generic.PWStealer.D4C97EB2

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
   • Registry modification
   • Steals information

Files It copies itself to the following locations:
   • %SYSDIR%\SVOHOST.exe
   • %drive%\sxs.exe
   • %SYSDIR%\winscok.dll

It deletes the initially executed copy of itself.

The following files are created:

– A file that is for temporary use and it might be deleted afterwards:
   • %SYSDIR%\noruns.reg

– %drive%\autorun.inf

Registry The following registry key is continuously in an infinite loop added in order to run the process after reboot.

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "SoundMam"="%SYSDIR%\SVOHOST.exe"

The values of the following registry key are removed:

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "Winhoxt"=-
   • "NTdhcp"=-
   • "KAVPersonal50"=-
   • "yassistse"=-
   • "YLive.exe"=-
   • "KvMonXP"=-
   • "RavTask"=-

The following registry key is added:

– [HKCU\Software\Microsoft\Internet Explorer\New Windows]
   • "PopupMgr"="no"

The following registry key is changed:

Various Explorer settings:
– [HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer]
   New value:
   • "NoDriveTypeAutoRun"=dword:000000bd

Process termination List of processes that are terminated:
   • PFW.exe; Kav.exe; KVOL.exe; KVFW.exe; TBMon.exe; kav32.exe; kvwsc.exe;
      CCAPP.exe; EGHOST.exe; KRegEx.exe; kavsvc.exe; VPTray.exe; RAVMON.exe;
      KavPFW.exe; SHSTAT.exe; RavTask.exe; TrojDie.kxp; Iparmor.exe;
      MAILMON.exe; MCAGENT.exe; KAVPLUS.exe; RavMonD.exe; Rtvscan.exe;
      Nvsvc32.exe; KVMonXP.exe; Kvsrvxp.exe; CCenter.exe; KpopMon.exe;
      RfwMain.exe; KWATCHUI.exe; MCVSESCN.exe; MSKAGENT.exe; kvolself.exe;
      KVCenter.kxp; kavstart.exe; RAVTIMER.exe; RRfwMain.exe; FireTray.exe;
      UpdaterUI.exe; KVSrvXp_1.exe; RavService.exe

Injection – It injects itself into a process.

Process name:
• %processes that have visible windows%

File details Programming language:
The malware program was written in Delphi.

Runtime packer:
In order to aggravate detection and reduce size of the file it is packed with a runtime packer.

See a brief description here.

Description inserted by Monica Ghitun on Thu, 05 Oct 2006 09:15 (GMT+1)
Description updated by Monica Ghitun on Wed, 01 Nov 2006 10:39 (GMT+1)

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