TROJ_FAKEAV.GFL

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It disables Task Manager, Registry Editor, and Folder Options.

It connects to certain URLs. It may do this to remotely inform a malicious user of its installation. It may also do this to download possibly malicious files onto the computer, which puts the computer at a greater risk of infection by other threats.

It deletes itself after execution.

It installs a fake antivirus/antispyware software. It displays fake alerts that warn users of infection. It also displays fake scanning results of the affected system. It then asks for users to purchase it once scanning is completed. If users decide to purchase the rogue product, users are directed to a certain website asking for sensitive information, such as credit card numbers.

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Installation

This Trojan drops and executes the following files:

• %User Profile%\Application Data\Protector-{3 random characters}.exe - detected by Trend Micro as TROJ_FAKEAV.GFL

(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.)

Autostart Technique

This Trojan adds the following registry entries to enable its automatic execution at every system startup:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
Inspector = "%User Profile%\Application Data\Protector-{3 random characters}.exe"

Other System Modifications

This Trojan adds the following registry entries as part of its installation routine:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Internet Explorer\Main\FeatureControl\
FEATURE_ERROR_PAGE_BYPASS_ZONE_CHECK_FOR_HTTPS_KB954312
iexplore.exe = "1"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Settings
ID = "4"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Settings
GConfig = "{random values}"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Settings
net = "{yyyy-dd-mm_1}"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Settings
UID = "{random string}"

It creates the following registry entry(ies) to disable Task Manager, Registry Tools and Folder Options:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
System
DisableRegistryTools = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
System
DisableTaskMgr = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
System
DisableRegedit = "0"

Dropping Routine

This Trojan drops the following files:

• %Start Menu%\Programs\Windows Personal Detective.lnk
• %Desktop%\Windows Personal Detective.lnk
• %User Profile%\Application Data\Macromedia\Flash Player\macromedia.com\support\flashplayer\sys\#local\settings.sol
• %Desktop%\Windows Trojans Sleuth.lnk
• %Start Menu%\Programs\Windows Trojans Sleuth.lnk
• %User Profile%\Application Data\result.db

Download Routine

This Trojan connects to the following malicious URLs:

• http://{BLOCKED}l.{BLOCKED}box.com/u/60021057/NPSWF32.z
• http://{BLOCKED}t.online-secure-pay.info/?0=112&1=4&2=1&3=18&4=i&5=2600&6=5&7=1&8=62900.5512&9=1033&10=-480&11=0000&12={random string}&14=0
• http://{BLOCKED}ip.info/

Other Details

This Trojan deletes itself after execution.

Rogue Antivirus Routine

This Trojan installs a fake antivirus/antispyware software.

It displays fake alerts that warn users of infection. It also displays fake scanning results of the affected system. It then asks for users to purchase it once scanning is completed. If users decide to purchase the rogue product, users are directed to a certain website asking for sensitive information, such as credit card numbers.

NOTES:

This Trojan may be downloaded when a user accesses certain compromised websites leading to the following URL:

• http://{BLOCKED}ty-storage-gbhgfgc-2012.info/39f678a0d39279b6/4/setup.exe

It displays the following to indicate its installation:

It displays the following graphical user interface (GUI) and pretends to scan the system:

It poses as a legitimate antivirus application indicating that the system is either infected or compromised:

It may prevent an executed application from running:

If the user agrees to clean or repair the system, the following message is shown:

If the user agrees to purchase the software, they are redirected to the following page:

It posts the gathered information to the following URL:

• http://{BLOCKED}t.online-secure-pay.info/?0=112&1=4&2=1&3=18&4=i&5=2600&6=5&7=1&8=62900.5512&9=1033&10=-480&11=0000&12={random string}&14=0

It also prevents the execution of several security-related processes by creating the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\regedit.exe
Debugger="%User Profile%\Application Data\Protector-{3 random characters}.exe reg"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskmgr.exe
Debugger="%User Profile%\Application Data\Protector-{3 random characters}.exe task"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\{Application name}
Debugger="svchost.exe"

Where {Application name} is one of the following:

• a.exe
• aAvgApi.exe
• AAWTray.exe
• About.exe
• ackwin32.exe
• Ad-Aware.exe
• adaware.exe
• advxdwin.exe
• AdwarePrj.exe
• agent.exe
• agentsvr.exe
• agentw.exe
• alertsvc.exe
• alevir.exe
• alogserv.exe
• AlphaAV
• AlphaAV.exe
• AluSchedulerSvc.exe
• amon9x.exe
• anti-trojan.exe
• Anti-Virus Professional.exe
• AntispywarXP2009.exe
• antivirus.exe
• AntivirusPlus
• AntivirusPlus.exe
• AntivirusPro_2010.exe
• AntivirusXP
• AntivirusXP.exe
• antivirusxppro2009.exe
• AntiVirus_Pro.exe
• ants.exe
• apimonitor.exe
• aplica32.exe
• apvxdwin.exe
• arr.exe
• ashAvast.exe
• ashBug.exe
• ashChest.exe
• ashCnsnt.exe
• ashDisp.exe
• ashLogV.exe
• ashMaiSv.exe
• ashPopWz.exe
• ashQuick.exe
• ashServ.exe
• ashSimp2.exe
• ashSimpl.exe
• ashSkPcc.exe
• ashSkPck.exe
• ashUpd.exe
• ashWebSv.exe
• aswChLic.exe
• aswRegSvr.exe
• aswRunDll.exe
• aswUpdSv.exe
• atcon.exe
• atguard.exe
• atro55en.exe
• atupdater.exe
• atwatch.exe
• au.exe
• aupdate.exe
• auto-protect.nav80try.exe
• autodown.exe
• autotrace.exe
• autoupdate.exe
• av360.exe
• avadmin.exe
• avastSvc.exe
• avastUI.exe
• AVCare.exe
• avcenter.exe
• avciman.exe
• avconfig.exe
• avconsol.exe
• ave32.exe
• AVENGINE.EXE
• avgcc32.exe
• avgchk.exe
• avgcmgr.exe
• avgcsrvx.exe
• avgctrl.exe
• avgdumpx.exe
• avgemc.exe
• avgiproxy.exe
• avgnsx.exe
• avgnt.exe
• avgrsx.exe
• avgscanx.exe
• avgserv.exe
• avgserv9.exe
• avgsrmax.exe
• avgtray.exe
• avgui.exe
• avgupd.exe
• avgw.exe
• avgwdsvc.exe
• avkpop.exe
• avkserv.exe
• avkservice.exe
• avkwctl9.exe
• avltmain.exe
• avmailc.exe
• avmcdlg.exe
• avnotify.exe
• avnt.exe
• avp32.exe
• avpcc.exe
• avpdos32.exe
• avpm.exe
• avptc32.exe
• avpupd.exe
• avsched32.exe
• avsynmgr.exe
• avupgsvc.exe
• AVWEBGRD.EXE
• avwin.exe
• avwin95.exe
• avwinnt.exe
• avwsc.exe
• avwupd.exe
• avwupd32.exe
• avwupsrv.exe
• avxmonitor9x.exe
• avxmonitornt.exe
• avxquar.exe
• b.exe
• backweb.exe
• bargains.exe
• bdfvcl.exe
• bdfvwiz.exe
• BDInProcPatch.exe
• bdmcon.exe
• BDMsnScan.exe
• BDSurvey.exe
• bd_professional.exe
• beagle.exe
• belt.exe
• bidef.exe
• bidserver.exe
• bipcp.exe
• bipcpevalsetup.exe
• bisp.exe
• blackd.exe
• blackice.exe
• blink.exe
• blss.exe
• bootconf.exe
• bootwarn.exe
• borg2.exe
• bpc.exe
• brasil.exe
• brastk.exe
• brw.exe
• bs120.exe
• bspatch.exe
• bundle.exe
• bvt.exe
• c.exe
• cavscan.exe
• ccapp.exe
• ccevtmgr.exe
• ccpxysvc.exe
• ccSvcHst.exe
• cdp.exe
• cfd.exe
• cfgwiz.exe
• cfiadmin.exe
• cfiaudit.exe
• cfinet.exe
• cfinet32.exe
• cfp.exe
• cfpconfg.exe
• cfplogvw.exe
• cfpupdat.exe
• claw95.exe
• claw95cf.exe
• clean.exe
• cleaner.exe
• cleaner3.exe
• cleanIELow.exe
• cleanpc.exe
• click.exe
• cmd32.exe
• cmdagent.exe
• cmesys.exe
• cmgrdian.exe
• cmon016.exe
• connectionmonitor.exe
• control
• cpd.exe
• cpf9x206.exe
• cpfnt206.exe
• crashrep.exe
• csc.exe
• cssconfg.exe
• cssupdat.exe
• cssurf.exe
• ctrl.exe
• cv.exe
• cwnb181.exe
• cwntdwmo.exe
• d.exe
• datemanager.exe
• dcomx.exe
• defalert.exe
• defscangui.exe
• defwatch.exe
• deloeminfs.exe
• deputy.exe
• divx.exe
• dllcache.exe
• dllreg.exe
• doors.exe
• dop.exe
• dpf.exe
• dpfsetup.exe
• dpps2.exe
• driverctrl.exe
• drwatson.exe
• drweb32.exe
• drwebupw.exe
• dssagent.exe
• dvp95.exe
• dvp95_0.exe
• ecengine.exe
• efpeadm.exe
• emsw.exe
• ent.exe
• esafe.exe
• escanhnt.exe
• escanv95.exe
• espwatch.exe
• ethereal.exe
• etrustcipe.exe
• evpn.exe
• exantivirus-cnet.exe
• exe.avxw.exe
• expert.exe
• explore.exe
• f-agnt95.exe
• f-prot.exe
• f-prot95.exe
• f-stopw.exe
• fact.exe
• fameh32.exe
• fast.exe
• fch32.exe
• fih32.exe
• findviru.exe
• firewall.exe
• fixcfg.exe
• fixfp.exe
• fnrb32.exe
• fp-win.exe
• fp-win_trial.exe
• fprot.exe
• frmwrk32.exe
• frw.exe
• fsaa.exe
• fsav.exe
• fsav32.exe
• fsav530stbyb.exe
• fsav530wtbyb.exe
• fsav95.exe
• fsgk32.exe
• fsm32.exe
• fsma32.exe
• fsmb32.exe
• gator.exe
• gav.exe
• gbmenu.exe
• gbn976rl.exe
• gbpoll.exe
• generics.exe
• gmt.exe
• guard.exe
• guarddog.exe
• guardgui.exe
• hacktracersetup.exe
• hbinst.exe
• hbsrv.exe
• History.exe
• homeav2010.exe
• hotactio.exe
• hotpatch.exe
• htlog.exe
• htpatch.exe
• hwpe.exe
• hxdl.exe
• hxiul.exe
• iamapp.exe
• iamserv.exe
• iamstats.exe
• ibmasn.exe
• ibmavsp.exe
• icload95.exe
• icloadnt.exe
• icmon.exe
• icsupp95.exe
• icsuppnt.exe
• Identity.exe
• idle.exe
• iedll.exe
• iedriver.exe
• IEShow.exe
• iface.exe
• ifw2000.exe
• inetlnfo.exe
• infus.exe
• infwin.exe
• init.exe
• init32.exe
• install[1].exe
• install[2].exe
• install[3].exe
• install[4].exe
• install[5].exe
• intdel.exe
• intren.exe
• iomon98.exe
• istsvc.exe
• jammer.exe
• jdbgmrg.exe
• jedi.exe
• JsRcGen.exe
• kavlite40eng.exe
• kavpers40eng.exe
• kavpf.exe
• kazza.exe
• keenvalue.exe
• kerio-pf-213-en-win.exe
• kerio-wrl-421-en-win.exe
• kerio-wrp-421-en-win.exe
• killprocesssetup161.exe
• ldnetmon.exe
• ldpro.exe
• ldpromenu.exe
• ldscan.exe
• licmgr.exe
• lnetinfo.exe
• loader.exe
• localnet.exe
• lockdown.exe
• lockdown2000.exe
• lookout.exe
• lordpe.exe
• lsetup.exe
• luall.exe
• luau.exe
• lucomserver.exe
• luinit.exe
• luspt.exe
• MalwareRemoval.exe
• mapisvc32.exe
• mcagent.exe
• mcmnhdlr.exe
• mcmscsvc.exe
• mcnasvc.exe
• mcproxy.exe
• McSACore.exe
• mcshell.exe
• mcshield.exe
• mcsysmon.exe
• mctool.exe
• mcupdate.exe
• mcvsrte.exe
• mcvsshld.exe
• md.exe
• mfin32.exe
• mfw2en.exe
• mfweng3.02d30.exe
• mgavrtcl.exe
• mgavrte.exe
• mghtml.exe
• mgui.exe
• minilog.exe
• mmod.exe
• monitor.exe
• moolive.exe
• mostat.exe
• mpfagent.exe
• mpfservice.exe
• MPFSrv.exe
• mpftray.exe
• mrflux.exe
• mrt.exe
• msa.exe
• msapp.exe
• MSASCui.exe
• msbb.exe
• msblast.exe
• mscache.exe
• msccn32.exe
• mscman.exe
• msconfig
• msdm.exe
• msdos.exe
• msiexec16.exe
• mslaugh.exe
• msmgt.exe
• msmsgri32.exe
• msseces.exe
• mssmmc32.exe
• mssys.exe
• msvxd.exe
• mu0311ad.exe
• mwatch.exe
• n32scanw.exe
• nav.exe
• navap.navapsvc.exe
• navapsvc.exe
• navapw32.exe
• navdx.exe
• navlu32.exe
• navnt.exe
• navstub.exe
• navw32.exe
• navwnt.exe
• nc2000.exe
• ncinst4.exe
• ndd32.exe
• neomonitor.exe
• neowatchlog.exe
• netarmor.exe
• netd32.exe
• netinfo.exe
• netmon.exe
• netscanpro.exe
• netspyhunter-1.2.exe
• netutils.exe
• nisserv.exe
• nisum.exe
• nmain.exe
• nod32.exe
• normist.exe
• norton_internet_secu_3.0_407.exe
• notstart.exe
• npf40_tw_98_nt_me_2k.exe
• npfmessenger.exe
• nprotect.exe
• npscheck.exe
• npssvc.exe
• nsched32.exe
• nssys32.exe
• nstask32.exe
• nsupdate.exe
• nt.exe
• ntrtscan.exe
• ntvdm.exe
• ntxconfig.exe
• nui.exe
• nupgrade.exe
• nvarch16.exe
• nvc95.exe
• nvsvc32.exe
• nwinst4.exe
• nwservice.exe
• nwtool16.exe
• OAcat.exe
• OAhlp.exe
• OAReg.exe
• oasrv.exe
• oaui.exe
• oaview.exe
• ODSW.exe
• ollydbg.exe
• onsrvr.exe
• optimize.exe
• ostronet.exe
• otfix.exe
• outpost.exe
• outpostinstall.exe
• outpostproinstall.exe
• ozn695m5.exe
• padmin.exe
• panixk.exe
• patch.exe
• pav.exe
• pavcl.exe
• PavFnSvr.exe
• pavproxy.exe
• pavprsrv.exe
• pavsched.exe
• pavsrv51.exe
• pavw.exe
• pc.exe
• pccwin98.exe
• pcfwallicon.exe
• pcip10117_0.exe
• pcscan.exe
• pctsAuxs.exe
• pctsGui.exe
• pctsSvc.exe
• pctsTray.exe
• PC_Antispyware2010.exe
• pdfndr.exe
• pdsetup.exe
• PerAvir.exe
• periscope.exe
• persfw.exe
• personalguard
• personalguard.exe
• perswf.exe
• pf2.exe
• pfwadmin.exe
• pgmonitr.exe
• pingscan.exe
• platin.exe
• pop3trap.exe
• poproxy.exe
• popscan.exe
• portdetective.exe
• portmonitor.exe
• powerscan.exe
• ppinupdt.exe
• pptbc.exe
• ppvstop.exe
• prizesurfer.exe
• prmt.exe
• prmvr.exe
• procdump.exe
• processmonitor.exe
• procexplorerv1.0.exe
• programauditor.exe
• proport.exe
• protector.exe
• protectx.exe
• PSANCU.exe
• PSANHost.exe
• PSANToManager.exe
• PsCtrls.exe
• PsImSvc.exe
• PskSvc.exe
• pspf.exe
• PSUNMain.exe
• purge.exe
• qconsole.exe
• qh.exe
• qserver.exe
• Quick Heal.exe
• QuickHealCleaner.exe
• rapapp.exe
• rav7.exe
• rav7win.exe
• rav8win32eng.exe
• ray.exe
• rb32.exe
• rcsync.exe
• realmon.exe
• reged.exe
• regedt32.exe
• rescue.exe
• rescue32.exe
• rrguard.exe
• rscdwld.exe
• rshell.exe
• rtvscan.exe
• rtvscn95.exe
• rulaunch.exe
• rwg
• rwg.exe
• SafetyKeeper.exe
• safeweb.exe
• sahagent.exe
• Save.exe
• SaveArmor.exe
• SaveDefense.exe
• SaveKeep.exe
• savenow.exe
• sbserv.exe
• sc.exe
• scam32.exe
• scan32.exe
• scan95.exe
• scanpm.exe
• scrscan.exe
• Secure Veteran.exe
• secureveteran.exe
• Security Center.exe
• SecurityFighter.exe
• securitysoldier.exe
• serv95.exe
• setloadorder.exe
• setupvameeval.exe
• setup_flowprotector_us.exe
• sgssfw32.exe
• sh.exe
• shellspyinstall.exe
• shield.exe
• shn.exe
• showbehind.exe
• signcheck.exe
• smart.exe
• smartprotector.exe
• smc.exe
• smrtdefp.exe
• sms.exe
• smss32.exe
• snetcfg.exe
• soap.exe
• sofi.exe
• SoftSafeness.exe
• sperm.exe
• spf.exe
• sphinx.exe
• spoler.exe
• spoolcv.exe
• spoolsv32.exe
• spywarexpguard.exe
• spyxx.exe
• srexe.exe
• srng.exe
• ss3edit.exe
• ssgrate.exe
• ssg_4104.exe
• st2.exe
• start.exe
• stcloader.exe
• supftrl.exe
• support.exe
• supporter5.exe
• svc.exe
• svchostc.exe
• svchosts.exe
• svshost.exe
• sweep95.exe
• sweepnet.sweepsrv.sys.swnetsup.exe
• symlcsvc.exe
• symproxysvc.exe
• symtray.exe
• system.exe
• system32.exe
• sysupd.exe
• tapinstall.exe
• taumon.exe
• tbscan.exe
• tc.exe
• tca.exe
• tcm.exe
• tds-3.exe
• tds2-98.exe
• tds2-nt.exe
• teekids.exe
• tfak.exe
• tfak5.exe
• tgbob.exe
• titanin.exe
• titaninxp.exe
• TPSrv.exe
• trickler.exe
• trjscan.exe
• trjsetup.exe
• trojantrap3.exe
• TrustWarrior.exe
• tsadbot.exe
• tsc.exe
• tvmd.exe
• tvtmd.exe
• undoboot.exe
• updat.exe
• upgrad.exe
• utpost.exe
• vbcmserv.exe
• vbcons.exe
• vbust.exe
• vbwin9x.exe
• vbwinntw.exe
• vcsetup.exe
• vet32.exe
• vet95.exe
• vettray.exe
• vfsetup.exe
• vir-help.exe
• virusmdpersonalfirewall.exe
• VisthAux.exe
• VisthLic.exe
• VisthUpd.exe
• vnlan300.exe
• vnpc3000.exe
• vpc32.exe
• vpc42.exe
• vpfw30s.exe
• vptray.exe
• vscan40.exe
• vscenu6.02d30.exe
• vsched.exe
• vsecomr.exe
• vshwin32.exe
• vsisetup.exe
• vsmain.exe
• vsmon.exe
• vsstat.exe
• vswin9xe.exe
• vswinntse.exe
• vswinperse.exe
• w32dsm89.exe
• W3asbas.exe
• w9x.exe
• watchdog.exe
• webdav.exe
• WebProxy.exe
• webscanx.exe
• webtrap.exe
• wfindv32.exe
• whoswatchingme.exe
• wimmun32.exe
• win-bugsfix.exe
• win32.exe
• win32us.exe
• winactive.exe
• winav.exe
• windll32.exe
• window.exe
• windows Police Pro.exe
• windows.exe
• wininetd.exe
• wininitx.exe
• winlogin.exe
• winmain.exe
• winppr32.exe
• winrecon.exe
• winservn.exe
• winssk32.exe
• winstart.exe
• winstart001.exe
• wintsk32.exe
• winupdate.exe
• wkufind.exe
• wnad.exe
• wnt.exe
• wradmin.exe
• wrctrl.exe
• wsbgate.exe
• wscfxas.exe
• wscfxav.exe
• wscfxfw.exe
• wsctool.exe
• wupdater.exe
• wupdt.exe
• wyvernworksfirewall.exe
• xpdeluxe.exe
• xpf202en.exe
• xp_antispyware.exe
• zapro.exe
• zapsetup3001.exe
• zatutor.exe
• zonalm2601.exe
• zonealarm.exe
• _avp32.exe
• _avpcc.exe
• _avpm.exe
• ~1.exe
• ~2.exe