Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rstrui.exe] 'Debugger' = 'dcayc.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'HP Print Manager 2.0' = '"%CommonProgramFiles%\HP Print Manager 2.0\aywa539e.exe"'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\RunOnce] 'HP Print Manager 2.0' = '%CommonProgramFiles%\HP Print Manager 2.0\aywa539e.exe'
Creates the following services:
- [<HKLM>\SYSTEM\ControlSet001\Services\SSDPSRV] 'Start' = '00000002'
Malicious functions:
Executes the following:
- '%WINDIR%\explorer.exe'
Injects code into
the following system processes:
- <SYSTEM32>\cmd.exe
- <SYSTEM32>\cscript.exe
- %WINDIR%\explorer.exe
- <SYSTEM32>\ctfmon.exe
a large number of user processes.
Searches for registry branches where third party applications store passwords:
- [<HKCU>\Software\Valve\Steam]
Searches for windows to
detect analytical utilities:
- ClassName: 'PROCMON_WINDOW_CLASS' WindowName: ''
- ClassName: 'TIdaWindow' WindowName: ''
- ClassName: '' WindowName: 'Registry Monitor - Sysinternals: www.sysinternals.com'
- ClassName: 'OLLYDBG' WindowName: ''
Modifies settings of Windows Internet Explorer:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '2500' = '00000003'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4] '2500' = '00000003'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1] '2500' = '00000003'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2] '2500' = '00000003'
Modifies file system:
Creates the following files:
- %APPDATA%\Microsoft\Crypto\RSA\S-1-5-21-2052111302-484763869-725345543-1003\ec702f375e1b12d218f67ab9ef19ca23_23ef5514-3059-436f-a4a7-4cefaab20eb1
- %HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\KHMHGZ4F\logout[1].htm
- %HOMEPATH%\My Documents\My Videos\Desktop.ini
- %APPDATA%\Microsoft\Protect\CREDHIST
Sets the 'hidden' attribute to the following files:
- %HOMEPATH%\My Documents\My Videos\Desktop.ini
Moves itself:
- from <Full path to file> to %CommonProgramFiles%\HP Print Manager 2.0\aywa539e.exe
Network activity:
Connects to:
- 'mo###izecrm.pro':80
- '20#.#6.232.182':80
TCP:
HTTP POST requests:
- http://mo###izecrm.pro/complex/setup/config/logout.php?id########
UDP:
- DNS ASK mo###izecrm.pro
- DNS ASK windowsupdate.microsoft.com
Miscellaneous:
Searches for the following windows:
- ClassName: '' WindowName: 'Monitoring - API Monitor v2 32-bit'
- ClassName: '' WindowName: 'GMER'
