Prevx Research Division
43[1].EXE
Cloaked MalwareFree PC Cleanup from Webroot
Use Webroot SecureAnywhere to remove 43[1].EXE.
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Associated Malware Groups
The unsafe files using this name are associated with the malware groups:
- Cloaked Malware
- Malicious Software
File Behavior
43[1].EXE has been seen to perform the following behavior:
- Writes to another Process's Virtual Memory (Process Hijacking)
- Executes a Process
- Copies files
- Creates system tray popups, messages, errors and security warnings
- Uses DNS to retrieve the IP address for web sites
43[1].EXE has been the subject of the following behavior:
- Created as a process on disk
- Executed as a Process
- Has code inserted into its Virtual Memory space by other programs
- Terminated as a Process
Country Of Origin
The filename 43[1].EXE was first seen on Apr 21 2008 in the following geographical regions of the Webroot community:
- Europe on Apr 21 2008
- Spain on Apr 30 2008
- Vietnam on Apr 30 2008
- on Aug 15 2008
- Germany on Aug 15 2008
- Romania on Feb 23 2010
- Belarus on Feb 23 2010
- Puerto Rico on Aug 22 2010
- The United Kingdom on Aug 22 2010
Filesizes
The following file size has been seen:
- 1,764,981 bytes
- 481,280 bytes
- 104,448 bytes
- 273,254 bytes
- 219,136 bytes
- 835,872 bytes
File Type
The filename 43[1].EXE is used by multiple object types including self extracting compressed files,executable programs.
File Activity
One or more files with the name 43[1].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\nsk9.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\xdjrtecswiaartg.dll
- 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
- 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-1-5-21-3675345140-516276246-1282138258-1003
- Deletes c:\docume~1\user\locals~1\temp\nsab.tmp\NSISdl.dll
- Deletes c:\docume~1\user\locals~1\temp\nsab.tmp\System.dll
Network Activity
One or more files with the name 43[1].EXE performs the following network events:
- DNS Lookup85.92.152.44 mysidesearch.com
Website Activity
One or more files with the name 43[1].EXE interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.
- TCP:127.0.0.1:1085 Port:17
- Port 80 IP:85.92.152.44
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