Trojan.AVKill.25420

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

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