Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Config Protocol Support Class' = '<SYSTEM32>\kehkyjqk.exe'
Creates the following services:
- [<HKLM>\SYSTEM\ControlSet001\Services\Window HomeGroup Spooler Registrar Wired] 'ImagePath' = '<SYSTEM32>\kehkyjqk.exe'
- [<HKLM>\SYSTEM\ControlSet001\Services\Window HomeGroup Spooler Registrar Wired] '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>\ntnfnavfmr.exe' "<SYSTEM32>\kehkyjqk.exe"
- '%WINDIR%\Temp\rkuv7b30nednzr.exe' -r 37647 tcp
- '%TEMP%\rkuv7bwchogszrchfntfn.exe'
- '<SYSTEM32>\kehkyjqk.exe'
Modifies file system:
Creates the following files:
- <SYSTEM32>\umtrasvk\run
- <SYSTEM32>\umtrasvk\rng
- %WINDIR%\Temp\rkuv7b30nednzr.exe
- <SYSTEM32>\umtrasvk\cfg
- %TEMP%\rkuv7bwchogszrchfntfn.exe
- <SYSTEM32>\umtrasvk\tst
- <SYSTEM32>\ntnfnavfmr.exe
- <SYSTEM32>\kehkyjqk.exe
Sets the 'hidden' attribute to the following files:
- <SYSTEM32>\ntnfnavfmr.exe
- <SYSTEM32>\kehkyjqk.exe
Deletes the following files:
- %WINDIR%\Temp\rkuv7b30nednzr.exe
- %TEMP%\rkuv7bwchogszrchfntfn.exe
Network activity:
Connects to:
- 'we###eld.net':80
- 'sp###height.net':80
- 'we###eight.net':80
- 'sp###rain.net':80
- 'we###ain.net':80
- 'sp###held.net':80
- 'ya###ain.net':80
- 'mu###held.net':80
- 'ya###eld.net':80
- 'sp###sleep.net':80
- 'we###leep.net':80
- 'mu###rain.net':80
- 'fr###sleep.net':80
- 'se####berheight.net':80
- 'se####bersleep.net':80
- 'of###rain.net':80
- 'jo###leep.net':80
- 'se####berrain.net':80
- 'se####berheld.net':80
- 'of###height.net':80
- 'fr###height.net':80
- 'of###sleep.net':80
- 'fr###rain.net':80
- 'of###held.net':80
- 'fr###held.net':80
- 'mu###height.net':80
- 'of####urprise.net':80
- 'gw#####ynhuddleston.net':80
- 'ch####nother.net':80
- 'th###while.net':80
- 'ef###tbuilt.net':80
- 'ri###nstorm.net':80
- 'de####promise.net':80
- 'jo####ymeasure.net':80
- 'or###thrown.net':80
- 'mo####gduring.net':80
- 'si######edwerryhouse.net':80
- 'se####strong.net':80
- 'wr####mportant.net':80
- 'ha###ain.net':80
- 'hu###rain.net':80
- 'ha###eld.net':80
- 'ya###eight.net':80
- 'mu###sleep.net':80
- 'ya###leep.net':80
- 'ha###leep.net':80
- 'hu###sleep.net':80
- 'ma####portant.net':80
- 'hu###held.net':80
- 'ha###eight.net':80
- 'hu###height.net':80
TCP:
HTTP GET requests:
- http://we###eld.net/index.php
- http://sp###height.net/index.php
- http://we###eight.net/index.php
- http://sp###rain.net/index.php
- http://we###ain.net/index.php
- http://sp###held.net/index.php
- http://ya###ain.net/index.php
- http://mu###held.net/index.php
- http://ya###eld.net/index.php
- http://sp###sleep.net/index.php
- http://we###leep.net/index.php
- http://mu###rain.net/index.php
- http://fr###sleep.net/index.php
- http://se####berheight.net/index.php
- http://se####bersleep.net/index.php
- http://of###rain.net/index.php
- http://jo###leep.net/index.php
- http://se####berrain.net/index.php
- http://se####berheld.net/index.php
- http://of###height.net/index.php
- http://fr###height.net/index.php
- http://of###sleep.net/index.php
- http://fr###rain.net/index.php
- http://of###held.net/index.php
- http://fr###held.net/index.php
- http://mu###height.net/index.php
- http://of####urprise.net/index.php
- http://gw#####ynhuddleston.net/index.php
- http://ch####nother.net/index.php
- http://th###while.net/index.php
- http://ef###tbuilt.net/index.php
- http://ri###nstorm.net/index.php
- http://de####promise.net/index.php
- http://jo####ymeasure.net/index.php
- http://or###thrown.net/index.php
- http://mo####gduring.net/index.php
- http://si######edwerryhouse.net/index.php
- http://se####strong.net/index.php
- http://wr####mportant.net/index.php
- http://ha###ain.net/index.php
- http://hu###rain.net/index.php
- http://ha###eld.net/index.php
- http://ya###eight.net/index.php
- http://mu###sleep.net/index.php
- http://ya###leep.net/index.php
- http://ha###leep.net/index.php
- http://hu###sleep.net/index.php
- http://ma####portant.net/index.php
- http://hu###held.net/index.php
- http://ha###eight.net/index.php
- http://hu###height.net/index.php
UDP:
- DNS ASK sp###held.net
- DNS ASK we###eld.net
- DNS ASK sp###height.net
- DNS ASK fr###sleep.net
- DNS ASK sp###rain.net
- DNS ASK we###ain.net
- DNS ASK we###eight.net
- DNS ASK ya###ain.net
- DNS ASK mu###held.net
- DNS ASK ya###eld.net
- DNS ASK sp###sleep.net
- DNS ASK we###leep.net
- DNS ASK mu###rain.net
- DNS ASK se####berheld.net
- DNS ASK se####berheight.net
- DNS ASK se####bersleep.net
- DNS ASK wi###leep.net
- DNS ASK jo###leep.net
- DNS ASK se####berrain.net
- DNS ASK of###rain.net
- DNS ASK of###height.net
- DNS ASK fr###height.net
- DNS ASK of###sleep.net
- DNS ASK fr###rain.net
- DNS ASK of###held.net
- DNS ASK fr###held.net
- DNS ASK mu###height.net
- DNS ASK of####urprise.net
- DNS ASK gw#####ynhuddleston.net
- DNS ASK ch####nother.net
- DNS ASK th###while.net
- DNS ASK ef###tbuilt.net
- DNS ASK ri###nstorm.net
- DNS ASK de####promise.net
- DNS ASK jo####ymeasure.net
- DNS ASK or###thrown.net
- DNS ASK mo####gduring.net
- DNS ASK si######edwerryhouse.net
- DNS ASK se####strong.net
- DNS ASK wr####mportant.net
- DNS ASK ha###ain.net
- DNS ASK hu###rain.net
- DNS ASK ha###eld.net
- DNS ASK ya###eight.net
- DNS ASK mu###sleep.net
- DNS ASK ya###leep.net
- DNS ASK ha###leep.net
- DNS ASK hu###sleep.net
- DNS ASK ma####portant.net
- DNS ASK hu###held.net
- DNS ASK ha###eight.net
- DNS ASK hu###height.net
- '23#.#55.255.250':1900
