Submission Summary:

• Submission details:
• Submission received: 24 October 2012, 19:29:18
• Processing time: 10 min 19 sec
• Submitted sample:
• File MD5: 0xFBAFDEF020622E5C62C7A3BE49FAAA79
• File SHA-1: 0x3CE428DE7215C521A65B75EB40CA05465981BF92
• Filesize: 90,624 bytes
• Alias:
• Ransom-ABD.gen.a [McAfee]
• Worm:Win32/Hamweq.A [Microsoft]
• Worm.Win32.Hamweq [Ikarus]

• Summary of the findings:

What's been found	Severity Level
Creates desktop.ini system file in the fake Recycle Bin folder in order to register it in Windows as a valid Recycle Bin.
Creates an executable file in the fake Recycle Bin folder with the purpose of concealing its presence in the system.
Creates fake Recycle Bin folder.
Communication with a remote IRC server.
Creates a startup registry entry.
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	c:\RECYCLER\R-1-5-21-1482476501-1644491937-682003330-1013\Desktop.ini	62 bytes	MD5: 0x7457A5DF1FF47C957ACF1FA000D7D9AD SHA-1: 0x69D2BBA827FD4DE0169419A0FDA280252B348514	(not available)
2	c:\RECYCLER\R-1-5-21-1482476501-1644491937-682003330-1013\hostsv.exe [file and pathname of the sample #1]	90,624 bytes	MD5: 0xFBAFDEF020622E5C62C7A3BE49FAAA79 SHA-1: 0x3CE428DE7215C521A65B75EB40CA05465981BF92	Ransom-ABD.gen.a [McAfee] Worm:Win32/Hamweq.A [Microsoft] Worm.Win32.Hamweq [Ikarus]

• The following directory was created:
• c:\RECYCLER\R-1-5-21-1482476501-1644491937-682003330-1013

Memory Modifications

• There were new processes created in the system:

Registry Modifications

• The newly created Registry Value is:
• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
• Taskman = "c:\RECYCLER\R-1-5-21-1482476501-1644491937-682003330-1013\hostsv.exe"

so that hostsv.exe runs every time Windows starts

Other details

• The following Host Name was requested from a host database:
• tv.zaberno.com

• There was registered attempt to establish connection with the remote host. The connection details are:

Outbound traffic (potentially malicious)

• Attention! There was a new connection established with a remote IRC Server. The generated outbound IRC traffic is provided below: