ThreatExpert Report: Trojan.Win32.Agent.cnyo, Trojan.Bredolab, Downloader-BRM, Mal/EncPk-IR..

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Submission Summary:

Submission details:

Submission received: 17 July 2009, 01:08:42
Processing time: 6 min 18 sec
Submitted sample:

File MD5: 0x24BD24F8673E3985FC82EDB00B24BA73
File SHA-1: 0xD0C5265DE5259A51A44120D095E93EA2046441A9
Filesize: 22,528 bytes
Alias:

Trojan.Bredolab [Symantec]
Trojan.Win32.Agent.cnyo [Kaspersky Lab]
Downloader-BRM [McAfee]
Mal/EncPk-IR [Sophos]
Trojan.Win32.Agent [Ikarus]
Win-Trojan/Waledoc.22528 [AhnLab]

Summary of the findings:

What's been found	Severity Level
Downloads/requests other files from Internet.
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

Attention! The following threat category was identified:

Threat Category	Description
	A malicious trojan horse or bot that may represent security risk for the compromised system and/or its network environment

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%AppData%\wiaserva.log	0 bytes	MD5: 0xD41D8CD98F00B204E9800998ECF8427E SHA-1: 0xDA39A3EE5E6B4B0D3255BFEF95601890AFD80709	(not available)
2	%Temp%\WER87f3.dir00\appcompat.txt	16,296 bytes	MD5: 0xF560A82E9385739415E085B4553CBA8F SHA-1: 0x958B55E9517896C07D689F6BDDED4EF10D0718A9	(not available)
3	%Temp%\WER87f3.dir00\explorer.exe.hdmp	0 bytes	MD5: 0xD41D8CD98F00B204E9800998ECF8427E SHA-1: 0xDA39A3EE5E6B4B0D3255BFEF95601890AFD80709	(not available)
4	%Temp%\WER87f3.dir00\explorer.exe.mdmp	59,656 bytes	MD5: 0xB15B14D6BFC52877E181A44378D81FA7 SHA-1: 0xF898EA5F840DB9C6C0ACE9A9EA42376DC61E4C74	(not available)
5	%Temp%\WER87f3.dir00\manifest.txt	1,980 bytes	MD5: 0x41E9E2C3F2B899ECD56982510DBC4FEC SHA-1: 0xC4269BEC6C0AA889BB8725DF031BABAF0949D286	(not available)
6	%Programs%\Startup\rncsys32.exe	22,528 bytes	MD5: 0x24BD24F8673E3985FC82EDB00B24BA73 SHA-1: 0xD0C5265DE5259A51A44120D095E93EA2046441A9	Trojan.Bredolab [Symantec] Trojan.Win32.Agent.cnyo [Kaspersky Lab] Downloader-BRM [McAfee] Mal/EncPk-IR [Sophos] Trojan.Win32.Agent [Ikarus] Win-Trojan/Waledoc.22528 [AhnLab]

Notes:

%AppData% is a variable that refers to the file system directory that serves as a common repository for application-specific data. A typical path is C:\Documents and Settings\[UserName]\Application Data.
%Temp% is a variable that refers to the temporary folder in the short path form. By default, this is C:\Documents and Settings\[UserName]\Local Settings\Temp\ (Windows NT/2000/XP).
%Programs% is a variable that refers to the file system directory that contains the user's program groups. A typical path is C:\Documents and Settings\[UserName]\Start Menu\Programs.

The following directory was created:

%Temp%\WER87f3.dir00

Memory Modifications

There was a new process created in the system:

Process Name	Process Filename	Main Module Size
[filename of the sample #1]	[file and pathname of the sample #1]	69,632 bytes

Registry Modifications

The following Registry Keys were created:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers

The newly created Registry Value is:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers]

%Windir%\explorer.exe = "EnableNXShowUI"

The following Registry Values were modified:

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Session Manager\AppCompatibility]

AppCompatCache = EF BE AD DE 60 00 00 00 00 00 00 00 00 00 00 00 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF F

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\AppCompatibility]

AppCompatCache = EF BE AD DE 60 00 00 00 00 00 00 00 00 00 00 00 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF F

Other details

The following Host Name was requested from a host database:

78.109.29.116

The following HTTP URL was started reading:

http://78.109.29.116/new/controller.php?action=bot&entity_list=&uid=1&first=1&guid=13441600&rnd=981633

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