Technical Information
Malicious functions:
Creates and executes the following:
- '%TEMP%\byemngbwpg.exe'
- '%TEMP%\byemngbwpg.exe' (downloaded from the Internet)
Executes the following:
- '<SYSTEM32>\cmd.exe' /c ""%TEMP%\hbmxyirbwg.bat" "
Modifies file system:
Creates the following files:
- %TEMP%\CabF.tmp
- %TEMP%\Cab11.tmp
- %TEMP%\CabB.tmp
- %TEMP%\CabD.tmp
- %TEMP%\byemngbwpg.exe
- %TEMP%\hbmxyirbwg.bat
- %TEMP%\Cab13.tmp
- %TEMP%\Cab15.tmp
- %TEMP%\Cab9.tmp
- %APPDATA%\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
- %APPDATA%\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
- %APPDATA%\Microsoft\CryptnetUrlCache\MetaData\2BF68F4714092295550497DD56F57004
- %APPDATA%\Microsoft\CryptnetUrlCache\Content\2BF68F4714092295550497DD56F57004
- %TEMP%\Cab5.tmp
- %TEMP%\Cab7.tmp
- %TEMP%\Cab1.tmp
- %TEMP%\Cab3.tmp
Deletes the following files:
- %TEMP%\CabF.tmp
- %TEMP%\CabD.tmp
- %TEMP%\Cab11.tmp
- %TEMP%\Cab15.tmp
- %TEMP%\Cab13.tmp
- %TEMP%\CabB.tmp
- %TEMP%\Cab3.tmp
- %TEMP%\Cab1.tmp
- %TEMP%\Cab5.tmp
- %TEMP%\Cab9.tmp
- %TEMP%\Cab7.tmp
Deletes itself.
Network activity:
Connects to:
- 'ca#####.digicert.com':80
- 'da####ouse-bpn.com':80
- 'wp#d':80
- 'www.download.windowsupdate.com':80
TCP:
HTTP GET requests:
- http://ca#####.digicert.com/DigiCertAssuredIDRootCA.crt
- http://da####ouse-bpn.com/wp-content/c.exe
- http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab
- http://11#.#11.111.1/wpad.dat via wp#d
- http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootseq.txt
UDP:
- DNS ASK ca#####.digicert.com
- DNS ASK da####ouse-bpn.com
- DNS ASK wp#d
- DNS ASK www.download.windowsupdate.com
