JAVA_ADWIND.JEJPDI

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 adds certain registry entries to disable the Task Manager. This action prevents users from terminating the malware process, which can usually be done via the Task Manager.

It runs certain commands that it receives remotely from a malicious user. Doing this puts the affected computer and information found on the computer at greater risk. 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 copies of itself into the affected system:

• %UserProfile%\nYbQTVxcHuE\uiylKSALYJr.Vybgol

It drops the following files:

• %ProgramData%\Oracle\Java\.oracle_jre_usage\{random name1}.timestamp -> time usage of oracle
• %System%\test.txt -> used to check for admin rights
• %User Profile%\fUTkALeaTxM\ID.txt -> contains UUID
• %User Profile%\nYbQTVxcHuE\ID.txt -> contains UUID
• %User Temp%\hsperfdata_{username}\{process ID} -> contains details of the malware (2 files)
• %User Temp%\{random name2}.reg -> contains log of registries modified by the malware
• %User Temp%\Retrive{random numbers}.vbs -> script to detect installed AV security and Firewall products (deleted after execution) (4 files)

(Note: %ProgramData% is the Program Data folder, where it usually is C:\Program Files in Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\ProgramData in 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.. %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.)

It drops and executes the following files:

• %User Temp%\0.{random numbers}.class -> class to be loaded by main executable JAR

(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 adds the following processes:

• %ProgramData%\Oracle\Java\jre1.8.0_144\bin\java.exe
• %ProgramData%\Oracle\Java\jre1.8.0_144\bin\javaw.exe
• %System%\taskkill.exe /IM {process name} /T /F -> where {process name} could be one of the following processes terminated by the malware
• %System%\xcopy "%Program Files%\Java\jre{version}" "%Application Data%\Oracle\" /e -> copy files and directory trees of Java Installation folder to %Application Data%\Oracle folder

(Note: %ProgramData% is the Program Data folder, where it usually is C:\Program Files in Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\ProgramData in 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.. %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.)

It creates the following folders:

• %Application Data%\Oracle
• %User Profile%\fUTkALeaTxM
• %User Profile%\fUTkALeaTxM\DdWDtpinxpf -> plugin folder
• %User Profile%\nYbQTVxcHuE
• %User Temp%\hsperfdata_{User Name}

(Note: %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.. %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:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
WLyQyhWoosi = ""%Application Data%\Oracle\bin\javaw.exe" -jar "%UserProfile%\nYbQTVxcHuE\uiylKSALYJr.Vybgol""

Other System Modifications

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
{process name}
debugger = "svchost.exe"
where {process name} could be one of the following processes terminated by the malware

It adds the following registry entries to disable the Task Manager:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
System
DisableTaskMgr = "2"

Backdoor Routine

This Backdoor executes the following command(s) from a remote malicious user:

• Download Plug-ins
• Download and Execute Files
• Update itself
• Uninstall itself
• Reset Connection
• Terminate Process
• Sceen Capture
• Access Webcam
• Log Keystrokes

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

• {BLOCKED}.{BLOCKED}.27.66:1010

Process Termination

This Backdoor terminates the following processes if found running in the affected system's memory:

• 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
• 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
• quamgr.exe
• QUHLPSVC.EXE
• Rawshark.exe
• regedit.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
• Taskmgr.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
• UserAccountControlSettings.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

Other Details

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

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