ThreatExpert Report: Trojan.Gen, Downloader-CNV, Mal/Zbot-CX, Packed.Win32.Katusha

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Submission Summary:

Submission details:

Submission received: 17 July 2012, 03:32:33
Processing time: 11 min 12 sec
Submitted sample:

File MD5: 0x423508B5E7BD0EFD1ACAFA19BC01CE94
File SHA-1: 0x20B4717DC209373DA1003F26FF1F1AB29B0FE72A
Filesize: 49,152 bytes
Alias:

Trojan.Gen [Symantec]
Downloader-CNV [McAfee]
Mal/Zbot-CX [Sophos]
Packed.Win32.Katusha [Ikarus]

Summary of the findings:

What's been found	Severity Level
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	%System%\drivers\str.sys	0 bytes	MD5: 0xD41D8CD98F00B204E9800998ECF8427E SHA-1: 0xDA39A3EE5E6B4B0D3255BFEF95601890AFD80709	(not available)
2	[file and pathname of the sample #1]	49,152 bytes	MD5: 0x423508B5E7BD0EFD1ACAFA19BC01CE94 SHA-1: 0x20B4717DC209373DA1003F26FF1F1AB29B0FE72A	Trojan.Gen [Symantec] Downloader-CNV [McAfee] Mal/Zbot-CX [Sophos] Packed.Win32.Katusha [Ikarus]

Note:

%System% is a variable that refers to the System folder. By default, this is C:\Windows\System (Windows 95/98/Me), C:\Winnt\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).

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]	36,864 bytes

Registry Modifications

The following Registry Key was created:

HKEY_CURRENT_USER\Software\MSOLoad

The newly created Registry Value is:

[HKEY_CURRENT_USER\Software\MSOLoad]

krnl_sleepfreq = 19 00 00 00
krnl_servers_list = 68 74 74 70 00 00 00 00 00 00 00 00 00 00 00 68 74 74 70 3A 2F 2F 31 39 30 2E 31 32 33 2E 34 36 2E 39 31 2F 31 30 36 2F 67 65 74 63 66 67 2E 70 68 70 00

Other details

The following port was open in the system:

Port	Protocol	Process
1055	TCP	[file and pathname of the sample #1]

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