Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'MSN' = 'msnmsg.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\RunServices] 'MSN' = 'msnmsg.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'MSN' = 'msnmsg.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices] 'MSN' = 'msnmsg.exe'
Malicious functions:
Creates and executes the following:
- <SYSTEM32>\msnmsg.exe 300 "<Full path to virus>"
Terminates or attempts to terminate
the following user processes:
- mpftray.exe
- NAVAPW32.EXE
- MCAGENT.EXE
- fsav32.exe
- GUARD.EXE
- zapro.exe
- ZONEALARM.EXE
- smc.exe
- nod32.exe
- outpost.exe
- AVP32.EXE
- AVPCC.EXE
- AVP.EXE
- AVGCC32.EXE
- AVGCTRL.EXE
- Drwebupw.exe
- fsav.exe
- ccapp.exe
- AVPM.EXE
- AVSYNMGR.EXE
Modifies file system :
Creates the following files:
- <SYSTEM32>\msnmsg.exe
Sets the 'hidden' attribute to the following files:
- <SYSTEM32>\msnmsg.exe
Deletes itself.
Network activity:
Connects to:
- 'xx#####xxxx.localdomain':6667
- '25#.#55.255.255':6667
- '<Private IP address>':445
- '<Private IP address>':44445
UDP:
- DNS ASK xx#####xxxx.localdomain
Miscellaneous:
Searches for the following windows:
- ClassName: 'mIRC' WindowName: ''
- ClassName: 'Indicator' WindowName: ''