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Profil

Trojan.AVKill.25420

Added to the Dr.Web virus database: 2012-11-20

Virus description added:

Technical Information

To ensure autorun and distribution:
Creates the following services:
  • [<HKLM>\SYSTEM\ControlSet001\Services\Messenger] 'Start' = '00000002'
Malicious functions:
Executes the following:
  • <SYSTEM32>\net.exe stop "aswUpdSv"
  • <SYSTEM32>\sc.exe stop ashWebSv
  • <SYSTEM32>\sc.exe stop ashServ
  • <SYSTEM32>\net1.exe stop "ashServ"
  • <SYSTEM32>\net.exe stop "ashServ"
  • <SYSTEM32>\net1.exe stop "aswUpdSv"
  • <SYSTEM32>\sc.exe config aswUpdSv start= disabled
  • <SYSTEM32>\tskill.exe "ekrn"
  • <SYSTEM32>\tskill.exe "EhttpSrv"
  • <SYSTEM32>\sc.exe stop aswUpdSv
  • <SYSTEM32>\sc.exe config ashWebSv start= disabled
  • <SYSTEM32>\sc.exe config ashServ start= disabled
  • <SYSTEM32>\net.exe stop "ashWebSv"
  • <SYSTEM32>\sc.exe config SNDSrvc start= disabled
  • <SYSTEM32>\sc.exe config ccSetMgr start= disabled
  • <SYSTEM32>\sc.exe config ccPwdSvc start= disabled
  • <SYSTEM32>\sc.exe config TMBMServer start= disabled
  • <SYSTEM32>\sc.exe config symlcsvc start= disabled
  • <SYSTEM32>\sc.exe config SymWSC start= disabled
  • <SYSTEM32>\tskill.exe "ashServ"
  • <SYSTEM32>\tskill.exe "aswUpdSv"
  • <SYSTEM32>\net1.exe stop "ashWebSv"
  • <SYSTEM32>\sc.exe config ccProxy start= disabled
  • <SYSTEM32>\sc.exe config ccEvtMgr start= disabled
  • <SYSTEM32>\tskill.exe "ashWebSv"
  • <SYSTEM32>\net1.exe stop "Tmntsrv"
  • <SYSTEM32>\net.exe stop "Tmntsrv"
  • <SYSTEM32>\net1.exe stop "PcCtlCom"
  • <SYSTEM32>\net.exe stop "tmproxy"
  • <SYSTEM32>\net1.exe stop "TmPfw"
  • <SYSTEM32>\net.exe stop "TmPfw"
  • <SYSTEM32>\sc.exe stop Tmntsrv
  • <SYSTEM32>\sc.exe stop PcCtlCom
  • <SYSTEM32>\sc.exe config tmproxy start= disabled
  • <SYSTEM32>\net.exe stop "PcCtlCom"
  • <SYSTEM32>\sc.exe stop tmproxy
  • <SYSTEM32>\sc.exe stop TmPfw
  • <SYSTEM32>\net1.exe stop "tmproxy"
  • <SYSTEM32>\net.exe stop "EhttpSrv"
  • <SYSTEM32>\sc.exe stop ekrn
  • <SYSTEM32>\sc.exe stop EhttpSrv
  • <SYSTEM32>\net1.exe stop "ekrn"
  • <SYSTEM32>\net.exe stop "ekrn"
  • <SYSTEM32>\net1.exe stop "EhttpSrv"
  • <SYSTEM32>\tskill.exe "Tmntsrv"
  • <SYSTEM32>\tskill.exe "TmPfw"
  • <SYSTEM32>\tskill.exe "tmproxy"
  • <SYSTEM32>\sc.exe config ekrn start= disabled
  • <SYSTEM32>\sc.exe config EhttpSrv start= disabled
  • <SYSTEM32>\tskill.exe "PcCtlCom"
  • <SYSTEM32>\tskill.exe "ntrtscan"
  • <SYSTEM32>\tskill.exe "OfcPfwSvc"
  • <SYSTEM32>\tskill.exe "TMBMServer"
  • <SYSTEM32>\sc.exe config NPFMntor start= disabled
  • <SYSTEM32>\sc.exe config navapsvc start= disabled
  • <SYSTEM32>\tskill.exe "SAVscan"
  • <SYSTEM32>\tskill.exe "ccSetMgr"
  • <SYSTEM32>\net1.exe stop "SAVscan"
  • <SYSTEM32>\net.exe stop "SAVscan"
  • <SYSTEM32>\tskill.exe "symlcsvc"
  • <SYSTEM32>\tskill.exe "SymWSC"
  • <SYSTEM32>\tskill.exe "SNDSrvc"
  • <SYSTEM32>\sc.exe config NSCService start= disabled
  • <SYSTEM32>\net1.exe stop "NSCService"
  • <SYSTEM32>\net.exe stop "NSCService"
  • <SYSTEM32>\net1.exe stop "NPFMntor"
  • <SYSTEM32>\tskill.exe "navapsvc"
  • <SYSTEM32>\tskill.exe "NPFMntor"
  • <SYSTEM32>\tskill.exe "NSCService"
  • <SYSTEM32>\sc.exe stop NSCService
  • <SYSTEM32>\sc.exe stop NPFMntor
  • <SYSTEM32>\sc.exe stop navapsvc
  • <SYSTEM32>\net.exe stop "NPFMntor"
  • <SYSTEM32>\net1.exe stop "navapsvc"
  • <SYSTEM32>\net.exe stop "navapsvc"
  • <SYSTEM32>\sc.exe stop OfcPfwSvc
  • <SYSTEM32>\sc.exe stop TMBMServer
  • <SYSTEM32>\sc.exe stop symlcsvc
  • <SYSTEM32>\net.exe stop "ccSetMgr"
  • <SYSTEM32>\sc.exe stop SAVscan
  • <SYSTEM32>\sc.exe stop ntrtscan
  • <SYSTEM32>\sc.exe config SAVscan start= disabled
  • <SYSTEM32>\sc.exe config ntrtscan start= disabled
  • <SYSTEM32>\sc.exe config OfcPfwSvc start= disabled
  • <SYSTEM32>\sc.exe stop SymWSC
  • <SYSTEM32>\sc.exe stop SNDSrvc
  • <SYSTEM32>\sc.exe stop ccSetMgr
  • <SYSTEM32>\net1.exe stop "ccSetMgr"
  • <SYSTEM32>\net.exe stop "OfcPfwSvc"
  • <SYSTEM32>\net1.exe stop "TMBMServer"
  • <SYSTEM32>\net.exe stop "TMBMServer"
  • <SYSTEM32>\net1.exe stop "ntrtscan"
  • <SYSTEM32>\net.exe stop "ntrtscan"
  • <SYSTEM32>\net1.exe stop "OfcPfwSvc"
  • <SYSTEM32>\net.exe stop "SymWSC"
  • <SYSTEM32>\net1.exe stop "SNDSrvc"
  • <SYSTEM32>\net.exe stop "SNDSrvc"
  • <SYSTEM32>\net1.exe stop "symlcsvc"
  • <SYSTEM32>\net.exe stop "symlcsvc"
  • <SYSTEM32>\net1.exe stop "SymWSC"
  • <SYSTEM32>\sc.exe config TmPfw start= disabled
  • <SYSTEM32>\sc.exe config MpfService start= disabled
  • <SYSTEM32>\sc.exe config McDetect.exe start= disabled
  • <SYSTEM32>\sc.exe config MSK80Service start= disabled
  • <SYSTEM32>\sc.exe stop McAfeeFramework
  • <SYSTEM32>\sc.exe stop McShield
  • <SYSTEM32>\sc.exe stop McTaskManager
  • <SYSTEM32>\sc.exe config McNASvc start= disabled
  • <SYSTEM32>\sc.exe config mcmscsvc start= disabled
  • <SYSTEM32>\sc.exe config McAfeeFramework start= disabled
  • <SYSTEM32>\sc.exe config McSysmon start= disabled
  • <SYSTEM32>\sc.exe config McProxy start= disabled
  • <SYSTEM32>\sc.exe config McODS start= disabled
  • <SYSTEM32>\sc.exe stop mcmscsvc
  • <SYSTEM32>\net1.exe stop "McTaskManager"
  • <SYSTEM32>\net.exe stop "McTaskManager"
  • <SYSTEM32>\sc.exe stop MpfService
  • <SYSTEM32>\net.exe stop "McAfeeFramework"
  • <SYSTEM32>\net1.exe stop "McShield"
  • <SYSTEM32>\net.exe stop "McShield"
  • <SYSTEM32>\sc.exe stop McProxy
  • <SYSTEM32>\sc.exe stop McODS
  • <SYSTEM32>\sc.exe stop McNASvc
  • <SYSTEM32>\sc.exe stop McDetect
  • <SYSTEM32>\sc.exe stop MSK80Service
  • <SYSTEM32>\sc.exe stop McSysmon
  • <SYSTEM32>\sc.exe config ERSvc start= disabled
  • <SYSTEM32>\tskill.exe "Messenger"
  • <SYSTEM32>\net1.exe start "Messenger"
  • <SYSTEM32>\net1.exe stop "ERSvc"
  • <SYSTEM32>\net.exe stop "ERSvc"
  • <SYSTEM32>\sc.exe stop ERSvc
  • <SYSTEM32>\net1.exe start "mnsrvc"
  • <SYSTEM32>\sc.exe start mnsrvc
  • <SYSTEM32>\sc.exe config mnsrvc start= auto
  • <SYSTEM32>\sc.exe start Messenger
  • <SYSTEM32>\sc.exe config Messenger start= auto
  • <SYSTEM32>\tskill.exe "mnsrvc"
  • <SYSTEM32>\tskill.exe "ERSvc"
  • <SYSTEM32>\tskill.exe "AntiVirService"
  • <SYSTEM32>\net1.exe stop "AntiVirScheduler"
  • <SYSTEM32>\net.exe stop "AntiVirScheduler"
  • <SYSTEM32>\sc.exe config McShield start= disabled
  • <SYSTEM32>\sc.exe config McTaskManager start= disabled
  • <SYSTEM32>\tskill.exe "AntiVirScheduler"
  • <SYSTEM32>\sc.exe stop AntiVirService
  • <SYSTEM32>\sc.exe config AntiVirScheduler start= disabled
  • <SYSTEM32>\sc.exe config AntiVirService start= disabled
  • <SYSTEM32>\net1.exe stop "AntiVirService"
  • <SYSTEM32>\net.exe stop "AntiVirService"
  • <SYSTEM32>\sc.exe stop AntiVirScheduler
  • <SYSTEM32>\sc.exe config Vsmon start= disabled
  • <SYSTEM32>\tskill.exe "SmcService"
  • <SYSTEM32>\net1.exe stop "SmcService"
  • <SYSTEM32>\net1.exe stop "Vsmon"
  • <SYSTEM32>\net.exe stop "Vsmon"
  • <SYSTEM32>\sc.exe stop Vsmon
  • <SYSTEM32>\tskill.exe "McTaskManager"
  • <SYSTEM32>\tskill.exe "McShield"
  • <SYSTEM32>\tskill.exe "McAfeeFramework"
  • <SYSTEM32>\net.exe stop "SmcService"
  • <SYSTEM32>\sc.exe stop SmcService
  • <SYSTEM32>\sc.exe config SmcService start= disabled
  • <SYSTEM32>\tskill.exe "Vsmon"
  • <SYSTEM32>\tskill.exe "Avg7Alrt"
  • <SYSTEM32>\net1.exe stop "Avg7Alrt"
  • <SYSTEM32>\net.exe stop "Avg7Alrt"
  • <SYSTEM32>\sc.exe config Tmntsrv start= disabled
  • <SYSTEM32>\sc.exe config PcCtlCom start= disabled
  • <SYSTEM32>\tskill.exe "avg8wd"
  • <SYSTEM32>\sc.exe stop avg8wd
  • <SYSTEM32>\sc.exe config Avg7Alrt start= disabled
  • <SYSTEM32>\sc.exe config avg8wd start= disabled
  • <SYSTEM32>\net1.exe stop "avg8wd"
  • <SYSTEM32>\net.exe stop "avg8wd"
  • <SYSTEM32>\sc.exe stop Avg7Alrt
  • <SYSTEM32>\net1.exe stop "McProxy"
  • <SYSTEM32>\net.exe stop "McProxy"
  • <SYSTEM32>\net1.exe stop "McODS"
  • <SYSTEM32>\net.exe stop "MSK80Service"
  • <SYSTEM32>\net1.exe stop "McSysmon"
  • <SYSTEM32>\net.exe stop "McSysmon"
  • <SYSTEM32>\net1.exe stop "mcmscsvc"
  • <SYSTEM32>\net.exe stop "mcmscsvc"
  • <SYSTEM32>\net1.exe stop "McAfeeFramework"
  • <SYSTEM32>\net.exe stop "McODS"
  • <SYSTEM32>\net1.exe stop "McNASvc"
  • <SYSTEM32>\net.exe stop "McNASvc"
  • <SYSTEM32>\net1.exe stop "MSK80Service"
  • <SYSTEM32>\tskill.exe "McProxy"
  • <SYSTEM32>\tskill.exe "McSysmon"
  • <SYSTEM32>\tskill.exe "MSK80Service"
  • <SYSTEM32>\tskill.exe "mcmscsvc"
  • <SYSTEM32>\tskill.exe "McNASvc"
  • <SYSTEM32>\tskill.exe "McODS"
  • <SYSTEM32>\net.exe stop "MpfService"
  • <SYSTEM32>\net1.exe stop "McDetect"
  • <SYSTEM32>\net.exe stop "McDetect"
  • <SYSTEM32>\tskill.exe "McDetect"
  • <SYSTEM32>\tskill.exe "MpfService"
  • <SYSTEM32>\net1.exe stop "MpfService"
Terminates or attempts to terminate
the following user processes:
  • ekrn.exe
Modifies file system :
Creates the following files:
  • %TEMP%\bt87344.bat
Sets the 'hidden' attribute to the following files:
  • %TEMP%\bt87344.bat
Deletes the following files:
  • %TEMP%\bt87344.bat

Curing recommendations

  1. If the operating system (OS) can be loaded (either normally or in safe mode), download Dr.Web Security Space and run a full scan of your computer and removable media you use. More about Dr.Web Security Space.
  2. If you cannot boot the OS, change the BIOS settings to boot your system from a CD or USB drive. Download the image of the emergency system repair disk Dr.Web® LiveDisk , mount it on a USB drive or burn it to a CD/DVD. After booting up with this media, run a full scan and cure all the detected threats.
Download Dr.Web

Download by serial number

Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.

After booting up, run a full scan of all disk partitions with Dr.Web Anti-virus for Linux.

Download Dr.Web

Download by serial number

  1. If the mobile device is operating normally, download and install Dr.Web for Android. Run a full system scan and follow recommendations to neutralize the detected threats.
  2. If the mobile device has been locked by Android.Locker ransomware (the message on the screen tells you that you have broken some law or demands a set ransom amount; or you will see some other announcement that prevents you from using the handheld normally), do the following:
    • Load your smartphone or tablet in the safe mode (depending on the operating system version and specifications of the particular mobile device involved, this procedure can be performed in various ways; seek clarification from the user guide that was shipped with the device, or contact its manufacturer);
    • Once you have activated safe mode, install the Dr.Web for Android onto the infected handheld and run a full scan of the system; follow the steps recommended for neutralizing the threats that have been detected;
    • Switch off your device and turn it on as normal.

Find out more about Dr.Web for Android