Full description

Virus:	Worm/Pinit.LG
Date discovered:	12/05/2010
Type:	Worm
In the wild:	Yes
Reported Infections:	Low to medium
Distribution Potential:	Low to medium
Damage Potential:	Low to medium
Static file:	Yes
File size:	227.840 Bytes
MD5 checksum:	535be204f3c9a5837ec787fa66e94ae0
IVDF version:	7.10.07.95 - Wednesday, May 12, 2010

General Aliases:
   • Sophos: Mal/EncPk-ND
   • Bitdefender: Trojan.Generic.KD.11521
   • Panda: W32/Pinit.L.worm
   • Eset: Win32/Pinit.AF

Platforms / OS:
   • Windows 2000
   • Windows XP
   • Windows 2003

Side effects:
   • Downloads malicious files
   • Drops malicious files
   • Registry modification

Files It copies itself to the following location:
   • %SYSDIR%\cooper.mine

It deletes the following file:
   • %SYSDIR%\fruar

The following files are created:

– %SYSDIR%\user32.dll
– %SYSDIR%\dllcache\user32.dll Further investigation pointed out that this file is malware, too. Detected as: TR/Patched.Gen2

– %SYSDIR%\fruar Further investigation pointed out that this file is malware, too. Detected as: TR/Patched.Gen2

– %SYSDIR%\btruljp
– %SYSDIR%\hgtd.ruy
– %SYSDIR%\h7t.wt
– %SYSDIR%\nmklo.dll Further investigation pointed out that this file is malware, too. Detected as: TR/Crypt.ZPACK.Gen

It tries to download some files:

– The location is the following:
   • http://adobecompany.co.uk/tpsa/**********

– The location is the following:
   • http://adobecompany.co.uk/tpsa/**********

– The location is the following:
   • http://polujopa.com/tpsa/gate/**********

It tries to executes the following file:

– Filename:
   • "%SYSDIR%\Wbem\wmic.exe" path win32_terminalservicesetting where (__Class!="") call setallowtsconnections 1

Registry The following registry keys are added:

– [HKLM\SOFTWARE\1]
   • "31AC70412E939D72A9234CDEBB1AF5867B"="efipdhioiijnjpjcjmidigiggmgfgkgkhkhfcojedpemjgfcinfdff"

– [HKLM\SOFTWARE\9]
   • "31AC70412E939D72A9234CDEBB1AF5867B"="nqrckqqlqdrqrirprhqoqrqdopoinfnhmjmqrjrjlmmrmrnpmqqhnqnknj"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows]
   • "Appijpt_Dlls"="nmklo"

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion]
   • "MID"="136E37E792FF4250BC7F017DB949C0626B9A5E820D5444C49FA861AFCF896914"

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

説明の挿入者 Petre Galan の 2010年8月16日月曜日
説明の更新者 Petre Galan の 2010年8月16日月曜日

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