File Investigation Report
"GBM6N.EXE"
Cloaked MalwarePC Cleanup in 3 Easy Steps
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Associated Malware Groups
The filename is associated with the malware group:
- Cloaked Malware
File Behavior
GBM6N.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
- Registers a Dynamic Link Library File
- Executes a Process
- Drops known malicious software during execution
- Modifies fixed, removable or USB drives using autorun to execute or spread infection
- Injects code into other processes
GBM6N.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
Country Of Origin
The filename GBM6N.EXE was first seen on Aug 1 2009 in the following geographical regions of the Prevx community:
- SERBIA AND MONTENEGRO on Aug 1 2009
- SPAIN on Aug 1 2009
- INDIA on Nov 16 2009
Filesizes
The following file size has been seen:
- 173,906 bytes
- 282,074 bytes
- 104,274 bytes
- 104,448 bytes
File Type
The filename GBM6N.EXE refers to many versions of an executable program.
File Activity
One or more files with the name GBM6N.EXE creates, deletes, copies or moves the following files and folders:
- Deletes c:\windows\system32\drivers\cdaudio.sys
- Copies file$ü_CHAR(0x12)_\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:\gbm6n.ex
- Copies filec:\windows\system32\olhrwef.exe to c:\gbm6n.ex
- Deletes c:\autorun.in
- Creates c:\autorun.in
- Deletes d:\gbm6n.ex
- Copies filec:\windows\system32\olhrwef.exe to d:\gbm6n.ex
- Deletes d:\autorun.in
- Creates d:\autorun.in
- Deletes c:\docume~1\user\locals~1\temp\am1.rar
- Opens/modifes c:\autoexec.bat
- Creates c:\docume~1\user\locals~1\temp\am1.rar
- Deletes c:\docume~1\user\locals~1\temp\am.exe
- Creates c:\docume~1\user\locals~1\temp\am.exe
- Creates c:\docume~1\user\locals~1\temp\248b_appcompat.txt
- Creates c:\docume~1\user\locals~1\temp\2332B.dmp
Website Activity
One or more files with the name GBM6N.EXE interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.
- TCP:127.0.0.1:1109 Port:18
- Port 80 IP:221.1.204.243
- TCP:127.0.0.1:1127 Port:18
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