Prevx Research Division
22.EXE
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
- Worm
- Malicious Software
- Malware Dropper
File Behavior
22.EXE has been seen to perform the following behavior:
- The Process is packed and/or encrypted using a software packing process
- This process creates other processes on disk
- This Process Deletes Other Processes From Disk
- Executes a Process
- Adds a Registry Key (RUN) to auto start Programs on system start up
- Modifies Windows Initialization And System Settings Used On Start up
- Registers a Dynamic Link Library File
- Writes to another Process's Virtual Memory (Process Hijacking)
- Can communicate with other computer systems using HTTP protocols
- Executes Processes stored in Temporary Folders
- Hooks the WININET.DLL function allowing it to read or copy Http and Https web page content and session information
- Creates or uses a background service to access the Internet using HTTP protocols
- Injects code into other processes
- Performs DNS look ups to resolve URL IP addresses
- Enables an In Process Object/Server - Common with DLL Injections
- Creation and Registers a Browser Helper Object in Internet Explorer
- Creates system tray popups, messages, errors and security warnings
- Uses DNS to retrieve the IP address for web sites
- The Process is polymorphic and can change its structure
22.EXE has been the subject of the following behavior:
- Executed from Temporary Folders
- Created as a process on disk
- Executed as a Process
- Deleted as a process from disk
- Added as a Registry auto start to load Program on Boot up
- Has code inserted into its Virtual Memory space by other programs
- Terminated as a Process
Country Of Origin
The filename 22.EXE was first seen on May 20 2007 in the following geographical regions of the Webroot community:
- The United States on May 20 2007
- Spain on May 20 2007
- Europe on Sep 21 2007
- France on Oct 3 2007
- Finland on Mar 17 2008
- on Mar 17 2008
- Canada on Sep 12 2008
- Pakistan on Oct 15 2008
- The United Kingdom on Jul 4 2010
- Turkey on May 23 2012
File Name Aliases
22.EXE can also use the following file names:
- TMP310.TMP
- TMP503.TMP
- TMP10474.TMP
- CSRSS.EXE
- 22[1].EXE
- 22[n].EXE
- KX.EXE
Filesizes
The following file size has been seen:
- 31,232 bytes
- 13,248 bytes
- 20,480 bytes
- 163,836 bytes
- 130,923 bytes
- 3,026,039 bytes
- 29,696 bytes
- 93,109 bytes
File Type
The filename 22.EXE refers to many versions of an executable program.
File Activity
One or more files with the name 22.EXE creates, deletes, copies or moves the following files and folders:
- Deletes c:\docume~1\user\locals~1\temp\nsk7.tmp
- Creates c:\docume~1\user\locals~1\temp\nsa9.tmp
- Deletes c:\docume~1\user\locals~1\temp\nsaB.tmp
- Creates c:\docume~1\user\locals~1\temp\nsab.tmp\System.dll
- Creates c:\windows\system32\nfbcnmmflgfuzu.dll
- Creates c:\windows\system32\lhliwdcaon.exe
- Creates c:\docume~1\user\locals~1\temp\nsab.tmp\NSISdl.dll
- Creates c:\docume~1\user\locals~1\temp\activation_key
- Deletes c:\docume~1\user\locals~1\temp\activation_key
- Deletes c:\docume~1\user\locals~1\temp\nsab.tmp\NSISdl.dll
- Deletes c:\docume~1\user\locals~1\temp\nsab.tmp\System.dll
- Opens/modifes c:\autoexec.bat
- Creates c:\documents and settings\user\application data\Microsoft
- Creates c:\documents and settings\user\application data\microsoft\Crypto
- Creates c:\documents and settings\user\application data\microsoft\crypto\RSA
- Creates c:\documents and settings\user\application data\microsoft\crypto\rsa\S-1-5-21-3581506895-3253555194-74049757-1003
Network Activity
One or more files with the name 22.EXE performs the following network events:
- DNS Lookup85.92.158.77 ads.agadoo.biz
Website Activity
One or more files with the name 22.EXE interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.
- Port 80 IP:85.92.158.77
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