Prevx Research Division
2A.EXE
Cloaked MalwareFree PC Cleanup from Webroot
Use Webroot SecureAnywhere to remove 2A.EXE.
"Just when you thought it couldn't get any better or faster. The Webroot scanning engine is 'high octane' with a hidden nitrous oxide system. Bravo!!!" W. Lodzinski, SecureAnywhere User
Associated Malware Groups
The unsafe files using this name are associated with the malware group:
- Cloaked Malware
File Behavior
2A.EXE has been seen to perform the following behavior:
- The Process is packed and/or encrypted using a software packing process
- Executes a Process
- This process creates other processes on disk
- This Process Deletes Other Processes From Disk
- Registers a Dynamic Link Library File
- Drops known malicious software during execution
- Modifies fixed, removable or USB drives using autorun to execute or spread infection
- Writes to another Process's Virtual Memory (Process Hijacking)
2A.EXE has been the subject of the following behavior:
- Copied to multiple locations on the system
- Deleted as a process from disk
- Executed as a Process
- Created as a process on disk
- Has code inserted into its Virtual Memory space by other programs
- Terminated as a Process
- Registered as a Dynamic Link Library File
Country Of Origin
The filename 2A.EXE was first seen on Sep 14 2007 in the following geographical regions of the Webroot community:
- India on Sep 14 2007
- Spain on Jul 31 2009
- Brazil on Nov 23 2009
- The United Kingdom on Nov 23 2009
- Mexico on May 18 2012
- Russian Federation on May 18 2012
File Name Aliases
2A.EXE can also use the following file names:
- OLHRWEF.EXE
- YHH.BAT
- DPLWRR~1.EXE
- DB77.TMP
Filesizes
The following file size has been seen:
- 104,475 bytes
- 14,954,975 bytes
- 310,780 bytes
- 4,088 bytes
File Type
The filename 2A.EXE refers to many versions of an executable program.
File Activity
One or more files with the name 2A.EXE creates, deletes, copies or moves the following files and folders:
- Deletes c:\windows\system32\drivers\cdaudio.sys
- Copies file4Æ_CHAR(0x03)_ \dllcache\cdaudio.sys to c:\windows\system32\drivers\cdaudio.sys
- Deletes c:\windows\system32\olhrwef.exe
- Deletes c:\windows\system32\nmdfgds0.dll
- Creates c:\windows\system32\nmdfgds0.dll
- Deletes c:\yhh.ba
- Copies filec:\windows\system32\olhrwef.exe to c:\yhh.ba
- Deletes c:\autorun.in
- Creates c:\autorun.in
- Deletes d:\yhh.ba
- Copies filec:\windows\system32\olhrwef.exe to d:\yhh.ba
- Deletes d:\autorun.in
- Creates d:\autorun.in
- Deletes c:\docume~1\user\locals~1\temp\help1.rar
- Opens/modifes c:\autoexec.bat
- Creates c:\docume~1\user\locals~1\temp\help1.rar
- Deletes c:\docume~1\user\locals~1\temp\help.exe
- Creates c:\docume~1\user\locals~1\temp\help.exe
- Creates c:\docume~1\user\locals~1\temp\5b49_appcompat.txt
- Creates c:\docume~1\user\locals~1\temp\2697E.dmp
Website Activity
One or more files with the name 2A.EXE interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.
- TCP:127.0.0.1:1117 Port:18
- Port 80 IP:221.1.204.243
- TCP:127.0.0.1:1124 Port:18
Help the Webroot Community to fight cyber crime
We are always looking for ways to improve the quality and speed of research to help us protect you from malicious software and cyber crime.
PCMag.com Editors' Choice Award Logo is a trademark of Ziff Davis Publishing Holdings Inc. Used under license.