Prevx Research Division
DLL.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
DLL.DLL has been seen to perform the following behavior:
- The Process is polymorphic and can change its structure
- Found on infected systems and resists interrogation by security products
- Adds a Registry Key (RUN) to auto start Programs on system start up
- Adds a Registry Key (RUNONCE) to auto start Programs on system start up
- The Process is packed and/or encrypted using a software packing process
- Registers a Dynamic Link Library File
DLL.DLL has been the subject of the following behavior:
- Created as a process on disk
- Deleted as a process from disk
- Registered as a Dynamic Link Library File
- Copied to multiple locations on the system
Country Of Origin
The filename DLL.DLL was first seen on May 22 2007 in the following geographical regions of the Webroot community:
- Taiwan on May 22 2007
- Turkey on Jun 5 2007
- on Jun 5 2007
- Brazil on Jun 12 2007
- The United States on Jul 21 2007
- Hungary on Jul 21 2007
- South Africa on Oct 23 2007
- Spain on Apr 17 2008
- Italy on Apr 17 2008
- Swaziland on Feb 25 2011
- Croatia on Feb 25 2011
File Name Aliases
DLL.DLL can also use the following file names:
- DLL_123.DLL
- NOD7.TMP
- NODB2.TMP
- DLL0 (1).DLL
- SPECIAL LEVEL/CLT/DLL.DLL
- TMPA6.TMP
- TMPA7.TMP
- M4|92625022.DLL
- ËŸU‹Ìƒ}_CHAR(0X08)_
- Â_CHAR(0X0C)_
- 99025271.DAT
Filesizes
The following file size has been seen:
- 51,200 bytes
- 24,576 bytes
- 28,160 bytes
- 25,088 bytes
- 26,624 bytes
- 2,560 bytes
- 45,056 bytes
- 15,049 bytes
File Type
The filename DLL.DLL refers to many versions of a dynamic link library.
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