Trojan.MulDrop.1296.origin

Technical Information

To ensure autorun and distribution

Modifies the following registry keys

[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\360rpt.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\RsAgent.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\ScanFrm.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\RavStub.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\rfwmain.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\Rfwstub.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\GFUpd.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\RsMain.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\GuardField.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\KAVPFW.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\kavstart.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\kwatch.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\KASARP.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\RAV.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\ANTIARP.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\Runiep.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\Rsaupd.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\rfwProxy.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\rfwsrv.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\ccEvtMgr.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\naPrdMgr.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\VsTskMgr.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\kav32.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\kissvc.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\KpfwSvc.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\AutoRun.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\HijackThis.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\PFW.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\TrojDie.KXP] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\Trojanwall.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\TrojanDetector.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\RSTray.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\ArSwp.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\SREngLdr.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\VPTRAY.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\mcshield.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\VPC32.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\WOPTILITIES.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\AvMonitor.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\safeboxTray.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\LiveUpdate360.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\360safebox.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\360tray.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\360safe.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\Ravservice.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\krnl360svc.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\arpfw.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\360sd.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\360rp.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\360safeup.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\360upp.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\SuperKiller.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\ZhuDongFangYu.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\RAVTRAY.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\RavMonD.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\RavMon.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\Ast.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\Mmsk.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\Frameworkservice.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\KRegEx.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\egui.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\ekrn.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\nod32krn.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\Nod32kui.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\Navapsvc.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\KVSrvXP.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\KVMonxp.KXP] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\RavTask.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\KVWSC.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\Iparmor.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\IceSword.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\Regedit.EXE] 'debugger' = 'ntsd -d'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\currentVersion\Image File Execution Options\KSWebShield.EXE] 'debugger' = 'ntsd -d'

Sets the following service settings

[<HKLM>\System\CurrentControlSet\Services\zagn] 'ImagePath' = '%WINDIR%\fonts\zagn.sys'

Creates the following services

'zagn' %WINDIR%\fonts\zagn.sys

Malicious functions

To complicate detection of its presence in the operating system,

forces the system hide from view:

hidden files

Modifies file system

Creates the following files

%ProgramFiles%\msjs.exe
%TEMP%\nxn2fa8.tmp
%WINDIR%\fonts\zagn.sys
%WINDIR%\temp\udd3784.tmp

Sets the 'hidden' attribute to the following files

%ProgramFiles%\msjs.exe

Deletes the following files

%WINDIR%\temp\udd3784.tmp
%WINDIR%\fonts\zagn.sys

Deletes itself.

Network activity

UDP

DNS ASK g.##akd.com

Miscellaneous

Searches for the following windows

ClassName: 'AfxControlBar42s' WindowName: ''

Creates and executes the following

'%ProgramFiles%\msjs.exe'
'%WINDIR%\syswow64\cmd.exe' /c del "<Full path to file>"' (with hidden window)
'%WINDIR%\syswow64\cmd.exe' /c sc config avp start= disabled' (with hidden window)

Executes the following

'%WINDIR%\syswow64\cmd.exe' /c del "<Full path to file>"
'%WINDIR%\syswow64\cmd.exe' /c sc config avp start= disabled
'%WINDIR%\syswow64\sc.exe' config avp start= disabled

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