Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\csrss.exe
Malicious functions:
Creates and executes the following:
- %APPDATA%\OpenCloud Security\csrss.exe
- %HOMEPATH%\Start Menu\Programs\Startup\csrss.exe exec%APPDATA%\OpenCloud Security\csrss.exe
Executes the following:
- <SYSTEM32>\msiexec.exe /V
Modifies file system :
Creates the following files:
- %TEMP%\1.tmp
- %WINDIR%\Temp\Cab2.tmp
- %WINDIR%\Temp\Tar3.tmp
- %APPDATA%\OpenCloud Security\csrss.exe
- %APPDATA%\Microsoft\CryptnetUrlCache\MetaData\A44F4E7CB3133FF765C39A53AD8FCFDD
- %APPDATA%\Microsoft\CryptnetUrlCache\Content\A44F4E7CB3133FF765C39A53AD8FCFDD
Deletes the following files:
- %WINDIR%\Temp\Tar3.tmp
- %WINDIR%\Temp\Cab2.tmp
Network activity:
Connects to:
- '20#.#6.232.182':80
- 'ww####garchive.com':80
- '74.##5.232.51':80
TCP:
HTTP GET requests:
- 20#.#6.232.182/pki/crl/products/CodeSignPCA2.crl
- ww####garchive.com/r.php?ve###################################################################
- 20#.#6.232.182/pki/crl/products/CSPCA.crl
- 74.##5.232.51/
- ww####garchive.com/
UDP:
- DNS ASK crl.microsoft.com
- DNS ASK ww####garchive.com
- DNS ASK google.com
