Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'DllHst' = '<LS_APPDATA>\Microsoft\dllhst3g.exe /waitservice'
- [<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'load' = '<DRIVERS>\mstsc.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run] 'SessMgr' = '<LS_APPDATA>\Microsoft\sessmgr.exe /waitservice'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'Cisvc' = '<LS_APPDATA>\Microsoft\cisvc.exe /waitservice'
Malicious functions:
Creates and executes the following:
- '<DRIVERS>\mstsc.exe' /waitservice
Modifies file system :
Creates the following files:
- <LS_APPDATA>\Microsoft\dllhst3g.exe
- <DRIVERS>\mstsc.exe
- <LS_APPDATA>\Microsoft\sessmgr.exe
- <LS_APPDATA>\Microsoft\cisvc.exe
Network activity:
Connects to:
- 'www.ka###rus.com':80
TCP:
HTTP GET requests:
- www.ka###rus.com/img/gt.cgi?s=#################
UDP:
- DNS ASK www.ka###rus.com