TROJ_MONKIF.AE
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Trojan
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
This malware checks for specific running processes in the affected system.
It connects to specific URLs in order to download malicious files.
This Trojan may be downloaded by other malware/grayware/spyware from remote sites.
TECHNICAL DETAILS
24,600 bytes
DLL
Yes
05 Apr 2011
Drops files, Downloads files
Arrival Details
This Trojan may be downloaded by other malware/grayware/spyware from remote sites.
Installation
This Trojan drops the following files:
- %User Temp%\{random file name}.tmp - also detected as TROJ_MONKIF.AE
- %User Temp%\msfat32 - also detected as TROJ_MONKIF.AE
(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003.)
It adds the following mutexes to ensure that only one of its copies runs at any one time:
- Local\UIEI
Autostart Technique
This Trojan adds the following registry keys to install itself as a Browser Helper Object (BHO):
HKEY_CLASSES_ROOT\CLSID\{random CLSID}
HKEY_CLASSES_ROOT\PROTOCOLS\Filter\
text/html
It registers itself as a BHO to ensure its automatic execution every time Internet Explorer is used by adding the following registry entries:
HKEY_CLASSES_ROOT\CLSID\{random CLSID}
(Default) = %User Temp%\msfat32
HKEY_CLASSES_ROOT\CLSID\{random CLSID}
ThreadingModel = Apartment
HKEY_CLASSES_ROOT\PROTOCOLS\Filter\
text/html
CLSID = {random CLSID}
HKEY_CLASSES_ROOT\PROTOCOLS\Filter\
text/html
(Default) = Microsoft Improved HTML MIME Filter
NOTES:
It enumerates all running processes to check if any of the following are running:
- ACAAS.exe
- ACAEGMr.exe
- ACAIS.exe
- ACALS.exe
- ACASP.exe
- acs.exe
- AFMain.exe
- AGIDSUI.exe
- AhnSD.exe
- AhnSDsv.exe
- ALMon.exe
- ALsvc.exe
- AluSchedulerSvc.exe
- ApVxdWin.exe
- ashDisp.exe
- ashMaiSv.exe
- ashServ.exe
- ashWebSv.exe
- aswUpdSv.exe
- avesvc.exe
- avgam.exe
- avgamsvr.exe
- avgas.exe
- avgcc.exeexe
- avgcsrvx.exe
- avgemc.exe
- avgfws8.exe
- AVGIDSAgent.exe
- AVGIDSMonitor.exe
- AVGIDSWatcher.exe
- avgnsx.exe
- avgrsx.exe
- avgtray.exe
- avgupd.exe
- avgupsvc.exe
- avgwdsvc.exe
- avgwsvc.exe
avp.exe - avpmapp.exe
- avwebgrd.exe
- caavguiscan.exe
- CAGlobal.exe
- CAGlobalLight.exe
- capfasem.exe
- cappactiveprotection.exe
- casc.exe
- casecuritycenter.exe
- cavrid.exe
- CClaw.exe
- ccschedulersvc.exe
- CCSVCHST.EXE
- cctray.exe
- CounterSpy.exe
- drwebscd.exe
- egui.exe
- ekrn.exe
- elogsvc.exe
- EMLPROUI.EXE
- EMLPROXY.EXE
- FAMEH32.exe
- FCH32.EXE
- ForceField.exe
- forsp.exe
- FPAVServer.exe
- FProtTray.exe
- fsaua.exe
- fsav32.exe
- fsavgui.exe
- fsdfwd.exe
- fsgk32.exe
- fsgk32st.exe
- fsguidll.exe
- FSM32.EXE
- FSMA32.EXE
- FSMB32.exe
- fspc.exe
- fsqh.exe
- fssm32.exe
- fsus.exe
- guard.exe
- guardxkickoff.exe
- guardxservice.exe
- guardxup.exe
- hcontain.exe
- HFACSvc.exe
- hpcsvc.exe
- HrRes.exe
- hsvcmod.exe
- IFace.exe
- isafe.exe
- ISWSVC.exe
- ITMRTSVC.exe
- K7EmlPxy.exe
- K7FWSrvc.exe
- K7PSSrvc.exe
- K7RTScan.exe
- K7SysMon.exe
- K7SysTry.exe
- K7TSecurity.exe
- K7TSMngr.exe
- livesrv.exe
- mcagent.exe
- mcmscsvc.exe
- McNASvc.exe
- McProxy.exe
- McSACore.exe
- mcshell.exe
- Mcshield.exe
- mcsysmon.exe
- mcupdmgr.exe
- mcvsmap.exee
- mcvsshld.exe
- mdmcls32.exe
- MpfSrv.exe
- MSASCui.exe
- msfwsvc.exe
- msksrver.exe
- MsMpEng.exe
- MSProxy.ahn
- Nbrowser.exe
- Nip.exe
- Njeeves.exe
- npcsvc32.exe
- npfsvc32.exe
- npfuser.exe
- nprosec.exe
- Nsesvc.exe
- nuaa.exe
- Nvcoas.exe
- nvcsched.exe
- nvoy.exe
- OcHealthMon.exe
- ONLINENT.EXE
- ONLNSVC.EXE
- op_mon.exe
- OPSSVC.EXE
- PavBckPT.exe
- PavFnSvr.exe
- PavPrSrv.exe
- PAVSRV51.EXE
- PPCtlPriv.exe
- prevx.exe
- PSANHost.exe
- PSHost.exe
- psksvc.exe
- PslmSvc.exe
- PSUNMain.exe
- PXAgent.exe
- PXConsole.exe
- qhfw.exe.EXE
- QOELoader.exe
- QUHLPSVC.EXE
- RavMon.exe
- RavTask.exe
- rsnetsvr.exe
- RsTray.exexe
- SAVAdminService.exe
- SavService.exe
- SBCSSvc.exe
- SBCSTray.exe
- SCANMSG.EXE
- SCANWSCS.EXE
- seccenter.exe
- SfCtlCom.exe
- SpIDerAgent.exe
- SpIDerMI.exe
- spiderml.exe
- spidernt.exe
- spidersgate.exe
- spiderui.exe
- svcprs32.exe
- symlcsvc.exe
- TMBMSRV.exe
- TmPfw.exe
- TmProxy.exe
- TRAYSSER.EXE
- TSCFCommander.exe
- TSCFPlatformCOMSvr.exe
- UfNai.exe
- UfSeAgnt.exe
- UfUpdUi.exe
- UmxAgent.exe
- UmxCfg.exe
- UmxFwHlp.exe
- UmxPol.exe
- UPSCHD.EXE
- vba32ldr.exe
- vbcmserv.exe
- vbsystry.exe
- vetmsg.exe
- virCatch.exe
- virusutilities.exe
- vrfwsock.exe
- vrfwsvc.exe
- vrmonnt.exe
- vrmonsvc.exe
- vrrepair.exe
- vrscan.exe
- vsmon.exe
- vsserv.exe
- WEBPROXY.EXE
- winss.exe
- winssnotify.exe
- WinSSUI.exe
- xcommsvr.exe
- Zanda.exe
- zlclient.exe
- Zlh.exe
- vmacthlp.exe
- VMwareService.exe
- VMwareTray.exe
- VMwareUser.exe
- SBAMSvc.exee
- SBAMTray.exe
- sbamui.exexe
- BDTUpdateService.exe
- pctsAuxs.exe
- pctsSvc.exe
- pctsTray.exe
- TFService.exe
- pctsGui.exe
- AVKProxy.exe
- AVKService.exe
- AVKTray.exe
- AVKWCtl.exe
- GDFirewallTray.exe
- GDFwSvc.exe
- GDSC.exe
- GDScan.exe
- GDScan.exe
- THAV.EXE
- THD32.EXE
- THSM.EXE
- dvpapi.exe
- syssvcnt.exe
- avgui.exe
- avinitnt.exe
- avtray.exe
- dvprpt.exe
- untray.exe
- WRConsumerService.exe
- SpySweeper.exe
- SpySweeperUI.exe
- SSU.exe
- SSU.exe
- uiscan.exe
- livesrv.exe
- vsserv.exe
- seccenter.exe
- MWAGENT.EXE
- escanmon.exe
- CONSCTL.EXE
- MWASER.EXE
- econceal.exe
- econser.exe
- MAILDISP.EXE
- TRYICOS.EXE
- tpcfg.exe
- tppfdmm.exe
- avmgma.exe
- avas.exe
- gozer.exe
- TDWatch.exe
- tptray.exe
- avcom.exe
- avcom.exe
- a2services.exe
- a2guard.exe
- a2start.exe
- cmdagent.exe
- cfp.exet.exe
- TeaTimer.exe
- SpybotSD.exe
- AAWService.exe
- AAWTray.exe
- Ad-Aware.exe
- AGB6.exe.exe
- AGBKrnl.exe
- ALive.exe
- ACenter.exe
- AScheduleService.exe
- kpfw32.exe
- kavstart.exe
- kwatch.exe
- kpfwsvc.exe
- kmailmon.exe
- kissvc.exe
- Arcabit.Core.LoggingService.exe
- arcarvir.exe
- ABregmon.exe
- AVMenu.exe
- ARCATA~1.EXE
- ArcaBackupService.exe
- ArcaRemoteSvc.exe
- ArcaBit.Core.Configurator2.exe
- NetMonSV.exe
- FileMonSV.exe
- KVMonXp.kxp
- KVXp.kxp
- KVSrvXP.exe
- msseces.exe
- MsMpEng.exe
- www.{BLOCKED}ies.com/photo/{random characters}.php?{random characters}={encrypted code for the running processes}
SOLUTION
8.900
7.950.07
05 Apr 2011
Step 1
For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.
Step 2
Remove malware files dropped/downloaded by TROJ_MONKIF.AE
- TROJ_EVADIPED.AM
Step 3
Close all opened browser windows
Step 4
Delete this registry key
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_CLASSES_ROOT\CLSID
- {random CLSID}
- {random CLSID}
- In HKEY_CLASSES_ROOT\PROTOCOLS\Filter
- text/html
- text/html
Step 5
Scan your computer with your Trend Micro product to delete files detected as TROJ_MONKIF.AE. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
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