Trojan.AVKill.32803

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MPSVC2.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MPMon.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\LiveUpdate360.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\DrUpdate.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rfwsrv.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RegGuide.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360delays.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\qutmserv.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kaccore.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rssafety.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KABackReport.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KSWebShield.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\vsserv.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\xcommsvr.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ccSvcHst.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mcinsupd.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\bdagent.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\livesrv.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Uplive.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KWatch.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\QQDoctorRtp.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\SHSTAT.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\McTray.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\udaterui.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\upsvc.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kppserv.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KPPTray.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kxetray.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KSafeTray.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KSafeSvc.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kxescore.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kxedefend.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'KAV' = '<SYSTEM32>\kav.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kxeserv.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kxesapp.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kwstray.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360sd.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360rp.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\zhudongfangyu.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360SoftMgrSvc.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360realpro.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\DSMain.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\DrvAnti.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\nbmanti.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\XsClient.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360safe.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\QQDrNetMon.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\alg.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ScanFrm.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Rav.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AgentSvr.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\CCenter.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RavStub.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RsTray.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rsnetsvr.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\naPrdMgr.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MpfSrv.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\QQDoctor.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\McProxy.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mcshield.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360tray.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\antiarp.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ekrn.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avp.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\safeboxTray.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360Safebox.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RavMon.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RavMonD.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RavTask.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RsAgent.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mfeann.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\egui.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mcupdmgr.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mfevtps.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mcsysmon.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rtvscan.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ccapp.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\vptray.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\vstskmgr.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\FrameworkService.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mcshell.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mcmscsvc.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mcnasvc.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mcagent.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KPfwSvc.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kmailmon.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KavStart.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MPSVC.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MPSVC1.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KISSvc.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ccSetMgr.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ccEvtMgr.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\defwatch.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\engineserver.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KPFW32.exe] 'Debugger' = 'svchost.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KVSrvXP.exe] 'Debugger' = 'svchost.exe'

Malicious functions:

Creates and executes the following:

'C:\c300.exe'
'%TEMP%\updata.exe'
'%TEMP%\RarSFX0\wow\WoWBox.exe' /start
'%TEMP%\RarSFX0\wow\updatewow.exe' /start

Executes the following:

'<SYSTEM32>\taskkill.exe' /f /t /im avp.exe
'<SYSTEM32>\sc.exe' stop PolicyAgent
'<SYSTEM32>\sc.exe' config avp start= disabled
'<SYSTEM32>\wscript.exe' "%TEMP%\RarSFX0\wow\run.vbs"
'<SYSTEM32>\runonce.exe' -r

Terminates or attempts to terminate

the following user processes:

AVP.EXE

Searches for windows to

detect analytical utilities:

ClassName: '(null)' WindowName: 'Process Monitor - Sysinternals: www.sysinternals.com'
ClassName: 'PROCMON_WINDOW_CLASS' WindowName: '(null)'
ClassName: '(null)' WindowName: 'Registry Monitor - Sysinternals: www.sysinternals.com'
ClassName: 'RegmonClass' WindowName: '(null)'
ClassName: '(null)' WindowName: 'File Monitor - Sysinternals: www.sysinternals.com'
ClassName: 'GBDYLLO' WindowName: '(null)'
ClassName: 'OLLYDBG' WindowName: '(null)'
ClassName: 'FilemonClass' WindowName: '(null)'
ClassName: 'pediy06' WindowName: '(null)'

Restores hooked functions in System Service Descriptor Table (SSDT).

Modifies file system :

Creates the following files:

%WINDIR%\inf\oem3.PNF
%WINDIR%\inf\oem3.inf
%PROGRAM_FILES%\ATI\ApsX85.inf
%TEMP%\updata.exe
%PROGRAM_FILES%\ATI\ApsX85.dll
<DRIVERS>\SET3.tmp
%TEMP%\RarSFX0\wow\run.vbs
%TEMP%\RarSFX0\wow\WoWBox.exe
%TEMP%\RarSFX0\wow\updatewow.exe
%PROGRAM_FILES%\ATI\ApsX85.sys
C:\c300.exe
%WINDIR%\dvdulus.idx

Deletes the following files:

%PROGRAM_FILES%\ATI\ApsX85.dll
%PROGRAM_FILES%\ATI\ApsX85.inf
%PROGRAM_FILES%\ATI\ApsX85.sys
%TEMP%\RarSFX0\wow\run.vbs
%TEMP%\RarSFX0\wow\updatewow.exe
C:\c300.exe

Moves the following files:

from <DRIVERS>\SET3.tmp to <DRIVERS>\ApsX85.sys

Network activity:

Connects to:

'20####.4440.info':1501
'yy####n.3322.org':803
'localhost':1037
'wo####.duowan.com':80

TCP:

HTTP GET requests:

wo####.duowan.com/wowplugin/AddonsUpdater.json

UDP:

DNS ASK 20####.4440.info
DNS ASK yy####n.3322.org
DNS ASK www.du##an.com
DNS ASK wo####.duowan.com

Miscellaneous:

Searches for the following windows:

ClassName: 'nls3v' WindowName: 'nls3v'
ClassName: 'n31vv' WindowName: 'n1a3a'
ClassName: '(null)' WindowName: '(null)'
ClassName: '18467-41' WindowName: '(null)'
ClassName: 'EDIT' WindowName: '(null)'
ClassName: 'Shell_TrayWnd' WindowName: '(null)'
ClassName: 'ATL:004801D0' WindowName: '??????? v1.0.41'

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