Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'PC NGEN Drive Helper Multimedia Secure Isolation' = '<SYSTEM32>\hthstis.exe'
Creates the following services:
- [<HKLM>\SYSTEM\ControlSet001\Services\Resolution Error Log Key Computer DCOM] 'ImagePath' = '<SYSTEM32>\hthstis.exe'
- [<HKLM>\SYSTEM\ControlSet001\Services\Resolution Error Log Key Computer DCOM] 'Start' = '00000002'
Malicious functions:
To complicate detection of its presence in the operating system,
blocks the following features:
- Windows Security Center
Executes the following:
- '<SYSTEM32>\qghfuxx.exe' "<SYSTEM32>\hthstis.exe"
- '%WINDIR%\Temp\yyhlokin3a1kvybkl.exe' -r 37791 tcp
- '%TEMP%\yyhlokin313ivybklejjzp0w.exe'
- '<SYSTEM32>\hthstis.exe'
Modifies file system:
Creates the following files:
- <SYSTEM32>\nakkskouqqk\run
- <SYSTEM32>\nakkskouqqk\rng
- %WINDIR%\Temp\yyhlokin3a1kvybkl.exe
- <SYSTEM32>\nakkskouqqk\cfg
- <SYSTEM32>\qghfuxx.exe
- %TEMP%\yyhlokin313ivybklejjzp0w.exe
- <SYSTEM32>\nakkskouqqk\tst
- <SYSTEM32>\hthstis.exe
- <SYSTEM32>\nakkskouqqk\etc
Sets the 'hidden' attribute to the following files:
- <SYSTEM32>\qghfuxx.exe
- <SYSTEM32>\hthstis.exe
Deletes the following files:
- %WINDIR%\Temp\yyhlokin3a1kvybkl.exe
- <DRIVERS>\etc\hosts
- %TEMP%\yyhlokin313ivybklejjzp0w.exe
Substitutes the HOSTS file.
Network activity:
Connects to:
- 'sa###lace.net':80
- 'wh###place.net':80
- 'sa###nto.net':80
- 'st###child.net':80
- 'ba###bout.net':80
- 'st###about.net':80
- 'wh###into.net':80
- 'wh###about.net':80
- 'so###lace.net':80
- 'lo###lace.net':80
- 'sa###hild.net':80
- 'wh###child.net':80
- 'sa###bout.net':80
- 'ba###hild.net':80
- 'li###nto.net':80
- 'en###into.net':80
- 'li###hild.net':80
- 'mo###about.net':80
- 'li###lace.net':80
- 'en###place.net':80
- 'en###child.net':80
- 'st###place.net':80
- 'ba###nto.net':80
- 'st###into.net':80
- 'li###bout.net':80
- 'en###about.net':80
- 'ba###lace.net':80
- 'so###nto.net':80
- 'ri###nstorm.net':80
- 'al###being.net':80
- 'ca####nbring.net':80
- 'pu###iss.net':80
- 'fr###ywide.net':80
- 'be##lxc.com':80
- 'pr####tbottom.net':80
- 'mo###ugust.net':80
- 'le###form.net':80
- 'cr#####onaraminta.net':80
- 'mo###olor.net':80
- 'ab###ell.net':80
- 'mi###hown.net':80
- 'fr###ykiss.net':80
- 'so###bout.net':80
- 'lo###bout.net':80
- 'de####erkiss.net':80
- 'lo###nto.net':80
- 'so###hild.net':80
- 'lo###hild.net':80
- 'al###kiss.net':80
- 'al####omorrow.net':80
- 'de####erlower.net':80
- 'al###lower.net':80
- 'de####erwide.net':80
- 'al###wide.net':80
- 'de#####rtomorrow.net':80
TCP:
HTTP GET requests:
- http://sa###lace.net/index.php
- http://wh###place.net/index.php
- http://sa###nto.net/index.php
- http://st###child.net/index.php
- http://ba###bout.net/index.php
- http://st###about.net/index.php
- http://wh###into.net/index.php
- http://wh###about.net/index.php
- http://so###lace.net/index.php
- http://lo###lace.net/index.php
- http://sa###hild.net/index.php
- http://wh###child.net/index.php
- http://sa###bout.net/index.php
- http://ba###hild.net/index.php
- http://li###nto.net/index.php
- http://en###into.net/index.php
- http://li###hild.net/index.php
- http://mo###about.net/index.php
- http://li###lace.net/index.php
- http://en###place.net/index.php
- http://en###child.net/index.php
- http://st###place.net/index.php
- http://ba###nto.net/index.php
- http://st###into.net/index.php
- http://li###bout.net/index.php
- http://en###about.net/index.php
- http://ba###lace.net/index.php
- http://so###nto.net/index.php
- http://ri###nstorm.net/index.php
- http://al###being.net/index.php
- http://ca####nbring.net/index.php
- http://pu###iss.net/index.php
- http://fr###ywide.net/index.php
- http://be##lxc.com/index.php
- http://pr####tbottom.net/index.php
- http://mo###ugust.net/index.php
- http://le###form.net/index.php
- http://cr#####onaraminta.net/index.php
- http://mo###olor.net/index.php
- http://ab###ell.net/index.php
- http://mi###hown.net/index.php
- http://fr###ykiss.net/index.php
- http://so###bout.net/index.php
- http://lo###bout.net/index.php
- http://de####erkiss.net/index.php
- http://lo###nto.net/index.php
- http://so###hild.net/index.php
- http://lo###hild.net/index.php
- http://al###kiss.net/index.php
- http://al####omorrow.net/index.php
- http://de####erlower.net/index.php
- http://al###lower.net/index.php
- http://de####erwide.net/index.php
- http://al###wide.net/index.php
- http://de#####rtomorrow.net/index.php
UDP:
- DNS ASK sa###lace.net
- DNS ASK wh###place.net
- DNS ASK sa###nto.net
- DNS ASK st###about.net
- DNS ASK ba###hild.net
- DNS ASK st###child.net
- DNS ASK ba###bout.net
- DNS ASK wh###about.net
- DNS ASK so###lace.net
- DNS ASK lo###lace.net
- DNS ASK sa###bout.net
- DNS ASK wh###into.net
- DNS ASK sa###hild.net
- DNS ASK wh###child.net
- DNS ASK li###nto.net
- DNS ASK en###into.net
- DNS ASK li###hild.net
- DNS ASK en###place.net
- DNS ASK ti###bout.net
- DNS ASK mo###about.net
- DNS ASK li###lace.net
- DNS ASK st###place.net
- DNS ASK ba###nto.net
- DNS ASK st###into.net
- DNS ASK ba###lace.net
- DNS ASK en###child.net
- DNS ASK li###bout.net
- DNS ASK en###about.net
- DNS ASK so###nto.net
- DNS ASK ri###nstorm.net
- DNS ASK al###being.net
- DNS ASK ca####nbring.net
- DNS ASK pu###iss.net
- DNS ASK fr###ywide.net
- DNS ASK be##lxc.com
- DNS ASK pr####tbottom.net
- DNS ASK mo###ugust.net
- DNS ASK le###form.net
- DNS ASK cr#####onaraminta.net
- DNS ASK mo###olor.net
- DNS ASK ab###ell.net
- DNS ASK mi###hown.net
- DNS ASK fr###ykiss.net
- DNS ASK so###bout.net
- DNS ASK lo###bout.net
- DNS ASK de####erkiss.net
- DNS ASK lo###nto.net
- DNS ASK so###hild.net
- DNS ASK lo###hild.net
- DNS ASK al###kiss.net
- DNS ASK al####omorrow.net
- DNS ASK de####erlower.net
- DNS ASK al###lower.net
- DNS ASK de####erwide.net
- DNS ASK al###wide.net
- DNS ASK de#####rtomorrow.net
- '23#.#55.255.250':1900
