Virus:TR/Pakes.A.514
Date discovered:29/04/2006
Type:Trojan
In the wild:Yes
Reported Infections:Medium
Distribution Potential:Low to medium
Damage Potential:Low to medium
Static file:Yes
File size:12.738 Bytes
MD5 checksum:20883863F7578D1E29062D9FB11D5C0F
VDF version:6.34.01.24

 General Method of propagation:
   • No own spreading routine


Aliases:
   •  Mcafee: Downloader-AAP
   •  Kaspersky: Trojan.Win32.Pakes
   •  TrendMicro: TROJ_YABE.O
   •  Sophos: Troj/Sickbt-E
   •  Bitdefender: Trojan.Downloader.Small.ANM


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


Side effects:
   • Drops a malicious file

 Files The following file is created:

– %SYSDIR%\sysldr.dll Further investigation pointed out that this file is malware, too. Detected as: TR/TComBill.O.2

 Registry The following registry keys are added in order to load the services after reboot:

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\
   ShellServiceObjectDelayLoad]
   • "sysldr"="{CEEAEC00-D220-40E6-A4AD-A3CEA4AD27B8}"

– [HKCR\CLSID\{CEEAEC00-D220-40E6-A4AD-A3CEA4AD27B8}\InprocServer32]
   • @="sysldr.dll"

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

Description inserted by Philipp Wolf on Tuesday, May 2, 2006
Description updated by Philipp Wolf on Wednesday, May 3, 2006

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