JAVA_ADWIND.AUSTB

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

It executes commands from a remote malicious user, effectively compromising the affected system. It connects to a website to send and receive information.

It gathers information and reports it to its servers.

Arrival Details

This backdoor 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 backdoor drops the following files:

• %User Temp%\m1487914{random numbers}.tmp
• %User Profile%\zNzxfluTvQW\ID.txt
• %Application Data%\Oracle\{copy of the files under Java Installation folder}
• %System%\test.txt
• %User Temp%\hsperfdata_{username}\{random numbers}

(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %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.. %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)

It drops and executes the following files:

• %User Temp%\Retrive{random numbers}.vbs - queries machine's installed antivirus and firewall software
• %User Temp%\{random}.reg - modifies registry entries

(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

It drops the following copies of itself into the affected system:

• %User Profile%\zNzxfluTvQW\ObLlcoxrtyx.jfboin
• %User Temp%\MCNKJHGGFFF{random numbers}.JAR

(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.. %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

Autostart Technique

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

HKCU\Software\Microsoft\
Windows\CurrentVersion\Run
ebodSkeoTlV = "%Application Data%\Oracle\bin\javaw.exe" -jar "%User Profile%\zNzxfluTvQW\ObLlcoxrtyx.jfboin"

HKCU\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
REalTechInfo = "java -jar "%User Temp%\MCNKJHGGFFF{random numbers}.JAR istmp""

Backdoor Routine

This backdoor executes the following commands from a remote malicious user:

• Download Plug-ins
• Download and Execute Files
• Update itself
• Uninstall itself
• Reset Connection

It connects to the following websites to send and receive information:

• {BLOCKED}.{BLOCKED}.126.138:2888

Other Details

This backdoor gathers the following information and reports it to its servers:

• Local IP
• Mac Address
• Size of RAM
• Country
• OS Name
• OS Version
• If User is Admin
• Java Version

NOTES:

It disables the following programs and antivirus-related applications by adding the following registry entries:

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

The registry key value {application} can be any of the following:

• acs.exe
• AdAwareDesktop.exe
• AdAwareService.exe
• AdAwareTray.exe
• AgentSvc.exe
• av_task.exe
• AVK.exe
• AVKProxy.exe
• AVKService.exe
• AVKTray.exe
• AVKWCtlx64.exe
• avpmapp.exe
• Bav.exe
• bavhm.exe
• BavSvc.exe
• BavTray.exe
• BavUpdater.exe
• BavWebClient.exe
• BDSSVC.exe
• BgScan.exe
• BullGuard.exe
• BullGuardBhvScanner.exe
• BullGuardUpdate.exe
• BullGuarScanner.exe
• capinfos.exe
• cavwp.exe
• CertReg.exe
• cis.exe
• CisTray.exe
• clamscan.exe
• ClamTray.exe
• ClamWin.exe
• cmdagent.exe
• ConfigSecurityPolicy.exe
• CONSCTLX.exe
• coreFrameworkHost.exe
• coreServiceShell.exe
• dragon_updater.exe
• dumpcap.exe
• econceal.exe
• econser.exe
• editcap.exe
• EMLPROXY.exe
• escanmon.exe
• escanpro.exe
• fcappdb.exe
• FCDBlog.exe
• FCHelper64.exe
• FilMsg.exe
• FilUp.exe
• filwscc.exe
• fmon.exe
• FortiClient.exe
• FortiClient_Diagnostic_Tool.exe
• FortiESNAC.exe
• FortiFW.exe
• FortiProxy.exe
• FortiSSLVPNdaemon.exe
• FortiTray.exe
• FPAVServer.exe
• FProtTray.exe
• FPWin.exe
• freshclam.exe
• freshclamwrap.exe
• fsgk32.exe
• FSHDLL64.exe
• fshoster32.exe
• FSM32.exe
• FSMA32.exe
• fsorsp.exe
• fssm32.exe
• GdBgInx64.exe
• GDKBFltExe32.exe
• GDSC.exe
• GDScan.exe
• guardxkickoff_x64.exe
• guardxservice.exe
• iptray.exe
• K7AVScan.exe
• K7CrvSvc.exe
• K7EmlPxy.exe
• K7FWSrvc.exe
• K7PSSrvc.exe
• K7RTScan.exe
• K7SysMon.exe
• K7TSecurity.exe
• K7TSMain.exe
• K7TSMngr.exe
• LittleHook.exe
• mbam.exe
• mbamscheduler.exe
• mbamservice.exe
• MCShieldCCC.exe
• MCShieldDS.exe
• MCShieldRTM.exe
• MCS-Uninstall.exe
• mergecap.exe
• MpCmdRun.exe
• MpUXSrv.exe
• MSASCui.exe
• MsMpEng.exe
• MWAGENT.exe
• MWASER.exe
• nanoav.exe
• nanosvc.exe
• nbrowser.exe
• nfservice.exe
• NisSrv.exe
• njeeves2.exe
• nnf.exe
• nprosec.exe
• NS.exe
• nseupdatesvc.exe
• nvcod.exe
• nvcsvc.exe
• nvoy.exe
• nwscmon.exe
• ONLINENT.exe
• op_mon.exe
• OPSSVC.exe
• ProcessHacker.exe
• procexp.exe
• PSANHost.exe
• PSUAMain.exe
• PSUAService.exe
• psview.exe
• PtSessionAgent.exe
• PtSvcHost.exe
• PtWatchDog.exe
• quamgr.exe
• QUHLPSVC.exe
• rawshark.exe
• SAPISSVC.exe
• SASCore64.exe
• SASTask.exe
• SBAMSvc.exe
• SBAMTray.exe
• SBPIMSvc.exe
• SCANNER.exe
• SCANWSCS.exe
• schmgr.exe
• scproxysrv.exe
• ScSecSvc.exe
• SDFSSvc.exe
• SDScan.exe
• SDTray.exe
• SDWelcome.exe
• SSUpdate64.exe
• SUPERAntiSpyware.exe
• SUPERDelete.exe
• text2pcap.exe
• TRAYICOS.exe
• TRAYSSER.exe
• trigger.exe
• tshark.exe
• twsscan.exe
• twssrv.exe
• uiSeAgnt.exe
• uiUpdateTray.exe
• uiWatchDog.exe
• uiWinMgr.exe
• UnThreat.exe
• UserReg.exe
• utsvc.exe
• V3Main.exe
• V3Medic.exe
• V3Proxy.exe
• V3SP.exe
• V3Svc.exe
• V3Up.exe
• VIEWTCP.exe
• VIPREUI.exe
• virusutilities.exe
• WebCompanion.exe
• wireshark.exe
• Zanda.exe
• Zlh.exe
• zlhh.exe

It also terminates the applications listed above using this command, taskkill /IM {Application} /T /F.