ThreatExpert Report: Trojan-Downloader.Win32.Agent.anjz, FakeAlert-AG.gen.c, Mal/Pushdo-A..

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Submission Summary:

Submission details:

Submission received: 18 November 2008, 12:32:21
Processing time: 6 min 3 sec
Submitted sample:

File MD5: 0x15268DFC9D52EDD2E23B45211EA90311
File SHA-1: 0x537E72FA6D04A9DA2D5B67F8DEC0C8BA5296A8B7
Filesize: 24,064 bytes
Alias:

Trojan-Downloader.Win32.Agent.anjz [Kaspersky Lab]
FakeAlert-AG.gen.c [McAfee]
Mal/Pushdo-A [Sophos]
TrojanDropper:Win32/Cutwail.AL [Microsoft]
Virus.Win32.Trojan [Ikarus]

Summary of the findings:

What's been found	Severity Level
Creates a startup registry entry.
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

Attention! Characteristics of the following security risk was identified in the system:

Security Risk	Description
Trojan-Downloader.Agent.BWH	Trojan-Downloader.Agent.BWH contacts a remote server in its attempt to secretly download additional threats onto affected machines.

Attention! The following threat category was identified:

Threat Category	Description
	A program that downloads files to the local computer that may represent security risk

File System Modifications

The following file was created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%System%\rs32net.exe [file and pathname of the sample #1]	24,064 bytes	MD5: 0x15268DFC9D52EDD2E23B45211EA90311 SHA-1: 0x537E72FA6D04A9DA2D5B67F8DEC0C8BA5296A8B7	Trojan-Downloader.Win32.Agent.anjz [Kaspersky Lab] FakeAlert-AG.gen.c [McAfee] Mal/Pushdo-A [Sophos] TrojanDropper:Win32/Cutwail.AL [Microsoft] Virus.Win32.Trojan [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
rs32net.exe	%System%\rs32net.exe	N/A

Registry Modifications

The newly created Registry Value is:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]

rs32net = "%System%\rs32net.exe"

so that rs32net.exe runs every time Windows starts

Other details

There were registered attempts to establish connection with the remote hosts. The connection details are:

Remote Host	Port Number
209.66.122.238	80
216.195.55.50	80

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