Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '5cd8f17f4086744065eb0992a09e05a2' = '"%TEMP%\Trojan.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '5cd8f17f4086744065eb0992a09e05a2' = '"%TEMP%\Trojan.exe" ..'
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\Trojan.exe' = '%TEMP%\Trojan.exe:*:Enabled:Trojan.exe'
Creates and executes the following:
- '%TEMP%\Trojan.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\Trojan.exe" "Trojan.exe" ENABLE
Modifies file system:
Creates the following files:
- %TEMP%\Cab1D.tmp
- %TEMP%\Cab1F.tmp
- %TEMP%\Cab21.tmp
- %TEMP%\Cab17.tmp
- %TEMP%\Cab19.tmp
- %TEMP%\Cab1B.tmp
- %TEMP%\Cab29.tmp
- %TEMP%\Cab2B.tmp
- %TEMP%\Cab2D.tmp
- %TEMP%\Cab23.tmp
- %TEMP%\Cab25.tmp
- %TEMP%\Cab27.tmp
- %TEMP%\Cab7.tmp
- %TEMP%\Cab9.tmp
- %TEMP%\CabB.tmp
- %TEMP%\Cab1.tmp
- %TEMP%\Cab3.tmp
- %TEMP%\Cab5.tmp
- %TEMP%\Cab13.tmp
- %TEMP%\Cab15.tmp
- %TEMP%\Trojan.exe
- %TEMP%\CabD.tmp
- %TEMP%\CabF.tmp
- %TEMP%\Cab11.tmp
Deletes the following files:
- %TEMP%\Cab1F.tmp
- %TEMP%\Cab21.tmp
- %TEMP%\Cab1D.tmp
- %TEMP%\Cab19.tmp
- %TEMP%\Cab1B.tmp
- %TEMP%\Cab23.tmp
- %TEMP%\Cab2B.tmp
- %TEMP%\Cab2D.tmp
- %TEMP%\Cab29.tmp
- %TEMP%\Cab25.tmp
- %TEMP%\Cab27.tmp
- %TEMP%\Cab17.tmp
- %TEMP%\Cab7.tmp
- %TEMP%\Cab9.tmp
- %TEMP%\Cab5.tmp
- %TEMP%\Cab1.tmp
- %TEMP%\Cab3.tmp
- %TEMP%\CabB.tmp
- %TEMP%\Cab13.tmp
- %TEMP%\Cab15.tmp
- %TEMP%\Cab11.tmp
- %TEMP%\CabD.tmp
- %TEMP%\CabF.tmp
Network activity:
Connects to:
- 'ca#####.digicert.com':80
- 're#####har2u.ddns.net':1177
- 'wp#d':80
- 'www.download.windowsupdate.com':80
TCP:
HTTP GET requests:
- http://ca#####.digicert.com/DigiCertAssuredIDRootCA.crt
- http://ca#####.digicert.com/DigiCertSHA2AssuredIDCodeSigningCA.crt
- 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 re#####har2u.ddns.net
- DNS ASK wp#d
- DNS ASK www.download.windowsupdate.com
