Prevx Research Division
"CSRXX.EXE"
Cloaked MalwareFree PC Cleanup from Webroot
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Associated Malware Groups
The filename is associated with the malware groups:
- Cloaked Malware
- Malware Dropper
- Malicious Software
File Behavior
CSRXX.EXE has been seen to perform the following behavior:
- Found on infected systems and resists interrogation by security products
- Uses low level raw disk access which could bypass security applications and checks
- Uses DNS to retrieve the IP address for web sites
- Uses your PC to connect to Chat rooms
- Executes a Process
- Injects code into other processes
- Registers a Dynamic Link Library File
- This process creates other processes on disk
- This Process Deletes Other Processes From Disk
- Visits web sites on your PC without you knowing
CSRXX.EXE has been the subject of the following behavior:
- Added as a Registry auto start to load Program on Boot up
- Created as a process on disk
- Copied to multiple locations on the system
- Deleted as a process from disk
- Executed as a Process
Country Of Origin
The filename CSRXX.EXE was first seen on Apr 6 2009 in the following geographical regions of the Webroot community:
- Spain on Apr 6 2009
- The United States on Apr 8 2009
- South Africa on Apr 16 2009
- Canada on May 15 2009
Filesizes
The following file size has been seen:
- 77,824 bytes
- 12,808,556 bytes
- 214,355 bytes
- 11,719,971 bytes
- 664,555 bytes
File Type
The filename CSRXX.EXE refers to many versions of an executable program.
File Activity
One or more files with the name CSRXX.EXE creates, deletes, copies or moves the following files and folders:
- Deletes c:\docume~1\user\locals~1\temp\test.ht
- Opens/modifes c:\autoexec.bat
- Creates c:\documents and settings\user\application data\addon.dat
- Creates c:\recycler\s-1-5-21-1482476501-1644491937-682003330-1013\Desktop.ini
- Deletes c:\recycler\s-1-5-21-1482476501-1644491937-682003330-1013\csrxx.exe
- Deletes c:\docume~1\user\locals~1\temp\test1.ht
Network Activity
One or more files with the name CSRXX.EXE performs the following network events:
- DNS Lookup174.34.174.204 ln0.mazikiticize.info
Website Activity
One or more files with the name CSRXX.EXE interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.
- installz34 .t35 .com / good43 .php
- TCP:174.34.174.204:6667 Port:27
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