Prevx Research Division
"SIUON.SCR"
Cloaked MalwareFree PC Cleanup from Webroot
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Associated Malware Groups
The filename is associated with the malware groups:
- Cloaked Malware
- Malicious Software
File Behavior
SIUON.SCR has been seen to perform the following behavior:
- Uses rootkit techniques to conceal its presence, interrogation or removal
- Found on infected systems and resists interrogation by security products
- Executes a Process
- This process creates other processes on disk
- Writes to another Process's Virtual Memory (Process Hijacking)
- Can communicate with other computer systems using HTTP protocols
- Registers a Dynamic Link Library File
- Injects code into other processes
- Performs DNS look ups to resolve URL IP addresses
- Hooks the WININET.DLL function allowing it to read or copy Http and Https web page content and session information
SIUON.SCR has been the subject of the following behavior:
- Added as a Registry auto start to load Program on Boot up
- Executed as a Process
- Created as a process on disk
- Has code inserted into its Virtual Memory space by other programs
Country Of Origin
The filename SIUON.SCR was first seen on Oct 7 2009 in the following geographical regions of the Webroot community:
- Europe on Oct 7 2009
- India on Dec 7 2009
- Mexico on Jan 12 2010
- The United Kingdom on Jan 12 2010
- Turkey on May 13 2010
- Albania on Jul 14 2010
- Poland on May 9 2012
File Name Aliases
SIUON.SCR can also use the following file names:
- SIUON.EXE
- WEAXA.EXE
- WEAXA.SCR
- SIUON.EXE-VIR
- 00128827.SCR
- 80372578.SCR
Filesizes
The following file size has been seen:
- 49,152 bytes
- 55,808 bytes
- 114,688 bytes
- 57,344 bytes
File Type
The filename SIUON.SCR refers to many versions of an executable program.
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