ThreatExpert Report

Submission Summary:

Submission details:

Submission received: 5 July 2012, 05:07:13
Processing time: 14 min 7 sec
Submitted sample:

File MD5: 0x07A61FD6AAB1140A20232425CF8575B9
File SHA-1: 0x9858B0FEDE09BD07C271C0DC71AF611F033E8891
Filesize: 563,741 bytes

Summary of the findings:

What's been found	Severity Level
Replication across networks by exploiting weakly restricted shares (common for Randex family of worms).
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

Attention! The following threat category was identified:

Threat Category	Description
	A network-aware worm that attempts to replicate across the existing network(s)

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash
1	%Temp%\58$$.bat	271 bytes	MD5: 0xB06A967B26F3D664E73953F3D609C194 SHA-1: 0xC8C44A67E4AAAE3473F4107F519FD2BB08B6F9FB
2	[file and pathname of the sample #1]	563,741 bytes	MD5: 0x07A61FD6AAB1140A20232425CF8575B9 SHA-1: 0x9858B0FEDE09BD07C271C0DC71AF611F033E8891
3	%System%\spoclsv.exe	329,728 bytes	MD5: 0x180332C27C79ED70FA20446796233ED9 SHA-1: 0x8C50033A2F459B25E8EED6F146AEE8AE94F346A0
4	%System%\tcm_ftp.exe.exe	233,984 bytes	MD5: 0x51B1A6C7BABF8D20990859E8476CC932 SHA-1: 0xC0C0BDAEF6970310C4C72CCFD2FD374E5ED5A7E5

Notes:

%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).
%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]	352,256 bytes

Other details

Analysis of the file resources indicate the following possible country of origin:

China

Heuristics Analysis

The network replication uses a dictionary attack by probing credentials from the following list:

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