Prevx Research Division
77.EXE
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Associated Malware Groups
The unsafe files using this name are associated with the malware group:
- Worm
File Behavior
77.EXE has been seen to perform the following behavior:
- The Process is packed and/or encrypted using a software packing process
- Can communicate with other computer systems using HTTP protocols
- This process creates other processes on disk
- Executes a Process
- Writes to another Process's Virtual Memory (Process Hijacking)
- Registers a Dynamic Link Library File
- Looks at the contents of the autoexec.bat file
- Reads email address and phone book details
- Visits web sites on your PC without you knowing
- Can communicate with other computers using TCP protocols
- This Process Deletes Other Processes From Disk
77.EXE has been the subject of the following behavior:
- Created as a process on disk
- Executed from Temporary Folders
- Deleted as a process from disk
- Executed as a Process
- Has code inserted into its Virtual Memory space by other programs
- Created as a new Background Service on the machine
- Terminated as a Process
Country Of Origin
The filename 77.EXE was first seen on Jun 23 2007 in the following geographical regions of the Webroot community:
- Singapore on Jun 23 2007
- Poland on Jun 27 2007
- Germany on Jul 31 2007
- on Sep 2 2008
- Spain on Mar 15 2009
- Turkey on May 23 2012
File Name Aliases
77.EXE can also use the following file names:
- 7[1].EXE
- 51.EXE
- 11.EXE
- 68.EXE
- 05.EXE
- 24[n]
Filesizes
The following file size has been seen:
- 3,372,487 bytes
- 59,639 bytes
- 91,726 bytes
- 16,384 bytes
- 46,157 bytes
- 114,688 bytes
File Type
The filename 77.EXE refers to many versions of an executable program.
File Activity
One or more files with the name 77.EXE creates, deletes, copies or moves the following files and folders:
- Opens/modifes c:\autoexec.bat
- Creates c:\windows\stfMeane450.exe
- Creates c:\docume~1\user\locals~1\temp\cq.bat
- Deletes c:\windows\faceback.exe
- Moves c:\windows\faceback.exe to c:\windows\faceback.exe
- Moves c:\windows\stfMeane450.exe to c:\windows\faceback.exe
- Moves c:\windows\b152.exe to c:\windows\b152.exe
- Copies filec:\windows\b152.exe to c:\windows\b152.exe
- Creates c:\windows\b152.exe
- Deletes c:\windows\b152.exe
- Deletes c:\docume~1\user\locals~1\temp\cq.bat
- create folder C:\Program Files\Mjcore\
- Moves c:\program files\mjcore\Mjcore.dll to c:\program files\mjcore\Mjcore.dll
- Deletes c:\program files\mjcore\Mjcore.dll
- Deletes c:\docume~1\user\locals~1\temp\tmp10.tmp
Website Activity
One or more files with the name 77.EXE interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.
- ksn .a450 .wrs .flutix .com / meane .stf
- Port 80 IP:62.90.134.24
- Port 80 IP:194.90.224.86
- TCP:206.251.244.252:8080 Port:18
- TCP:127.0.0.1:1099 Port:18
- Port 80 IP:206.71.190.187
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