Prevx Research Division
SYSTEM.DLL
Cloaked MalwareFree PC Cleanup from Webroot
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Associated Malware Groups
The unsafe files using this name are associated with the malware groups:
- Cloaked Malware
- Malicious Software
- Worm
File Behavior
SYSTEM.DLL has been seen to perform the following behavior:
- The Process is packed and/or encrypted using a software packing process
- This Process uses Anti Dissasembly Tricks to avoid analysis by security products
- The Process is polymorphic and can change its structure
- Executes a Process
- Registers a Dynamic Link Library File
- Drops known malicious software during execution
- This Process Disables Other Security Products
- Ability to execute files automatically on your PC
SYSTEM.DLL has been the subject of the following behavior:
- Created as a process on disk
- Deleted as a process from disk
- Enabled as an In Process Object/Server - Common with DLL Injections
- Executed as a Process
- Copied to multiple locations on the system
- Registered as a Dynamic Link Library File
Country Of Origin
The filename SYSTEM.DLL was first seen on May 3 2007 in the following geographical regions of the Webroot community:
- Europe on May 3 2007
- Italy on May 3 2007
- Bahrain on May 18 2007
- Iran, Islamic Republic of on May 18 2007
- Philippines on Dec 6 2008
- Spain on Dec 6 2008
- Turkey on Feb 28 2009
- Germany on Jun 8 2009
Filesizes
The following file size has been seen:
- 9,728 bytes
- 81,408 bytes
- 9,216 bytes
- 41,984 bytes
- 1,966,080 bytes
- 83,176 bytes
- 1,224,704 bytes
File Type
The filename SYSTEM.DLL is used by multiple object types including Dynamic Link LIbraries,executable programs.
File Activity
One or more files with the name SYSTEM.DLL creates, deletes, copies or moves the following files and folders:
- Deletes c:\docume~1\user\locals~1\temp\6.tmp
- Creates c:\docume~1\user\locals~1\temp\6.tmp\b2e.exe
- Deletes c:\docume~1\user\locals~1\temp\A.tmp
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