Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\RunOnce] 'frm_Navnefringernes' = 'wscript "%HOMEPATH%\frm_Turnkeys\frm_STAVREDE.vbs"'
Creates or modifies the following files
- %WINDIR%\win.ini
Malicious functions
Creates and executes the following
- '' (downloaded from the Internet)
Creates and executes the following (exploit)
- '%TEMP%\ypgyzska.exe'
Injects code into
the following user processes:
- frm_stavrede.exe
Modifies file system
Creates the following files
- <LS_APPDATA>\microsoft\windows\<INETFILES>\content.ie5\caasbycl\chiefo[1].exe
- %TEMP%\ypgyzska.exe
- %HOMEPATH%\frm_turnkeys\frm_stavrede.exe
- %HOMEPATH%\frm_turnkeys\frm_stavrede.vbs
- %APPDATA%\remcos\logs.dat
Network activity
Connects to
- 'pe####a.hopto.org':4344
TCP
HTTP GET requests
- http://pe#####.warzonedns.com:8080/bin/chiefo.exe
UDP
- DNS ASK pe#####.warzonedns.com
- DNS ASK pe####a.hopto.org
Miscellaneous
Creates and executes the following
- '%HOMEPATH%\frm_turnkeys\frm_stavrede.exe'
Executes the following
- '%ProgramFiles%\microsoft office\office14\excel.exe' -Embedding
