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TrojanSpy.Win32.QAKBOT.YXDBN

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• マルウェアタイプ: スパイウェア/情報窃取型
• 破壊活動の有無: なし
• 暗号化: はい
• 感染報告の有無: はい

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  概要

スパイウェアは、他のマルウェアに作成されるか、悪意あるWebサイトからユーザが誤ってダウンロードすることによりコンピュータに侵入します。

スパイウェアは、不正リモートユーザからのコマンドを実行し、感染コンピュータを改ざんします。

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  詳細

侵入方法

スパイウェアは、他のマルウェアに作成されるか、悪意あるWebサイトからユーザが誤ってダウンロードすることによりコンピュータに侵入します。

インストール

スパイウェアは、以下のプロセスを追加します。

• Depending on the number of AV products that was found to be running in the system and the machine architecture it would choose from the following:
  • %system%\AtBroker.exe
  • %System%\wermgr.exe
  • %System%\msra.exe
  • %System%\backgroundTaskHost.exe
  • %Program Files%\Internet Explorer\iexplorer.exe
• %System%\schtasks.exe /Create /RU "NT AUTHORITY\SYSTEM" /tn {Random} /tr "rundll32.exe \"{Malware Full Path and Name}.dll,Wind\"" /SC ONCE /Z /ST {Start Time} /ET {End Time}
• whoami /all
• cmd /c set
• arp -a
• ipconfig /all
• net view /all
• nslookup -querytype=ALL -timeout=10 _ldap._tcp.dc._msdcs.WORKGROUP
• nltest /domain_trusts /all_trusts
• net share
• route print
• netstat -nao
• net localgroup
• qwinsta

(註：%Program Files%フォルダは、デフォルトのプログラムファイルフォルダです。C:\Program Files in Windows 2000(32-bit)、Server 2003(32-bit)、XP、Vista(64-bit)、7、8、8.1、2008(64-bit)、2012(64-bit)、10(64-bit)の場合、通常 "C:\Program Files"です。また、Windows XP(64-bit)、Vista(64-bit)、7(64-bit)、8(64-bit)、8.1(64-bit)、2008(64-bit)、2012(64-bit)、10(64-bit)の場合、通常 "C:\Program Files（x86）" です。)

スパイウェアは、以下の Mutex を作成し、メモリ上で自身の重複実行を避けます。

• Global\{GUID}

スパイウェアは、以下のプロセスにコードを組み込みます。

• Depending on the number of AV products that was found to be running in the system and the machine architecture it would choose from the following:
  • %Windows%\wermgr.exe
  • %System%\backgroundTaskHost.exe
  • %System%\msra.exe
  • %System%\AtBroker.exe
  • %Program Files%\Internet Explorer\iexplorer.exe

(註：%Program Files%フォルダは、デフォルトのプログラムファイルフォルダです。C:\Program Files in Windows 2000(32-bit)、Server 2003(32-bit)、XP、Vista(64-bit)、7、8、8.1、2008(64-bit)、2012(64-bit)、10(64-bit)の場合、通常 "C:\Program Files"です。また、Windows XP(64-bit)、Vista(64-bit)、7(64-bit)、8(64-bit)、8.1(64-bit)、2008(64-bit)、2012(64-bit)、10(64-bit)の場合、通常 "C:\Program Files（x86）" です。)

自動実行方法

スパイウェアは、自身のコピーがWindows起動時に自動実行されるよう以下のレジストリ値を追加します。

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
{Random} = rundll32.exe {Malware Full Path and Name}.dll,Wind

バックドア活動

スパイウェアは、不正リモートユーザからの以下のコマンドを実行します。

• Update Self
• Update Configuration
• Download and Install Plugins
• Terminate Processes
• Drop Files
• Drop Files and Run

情報漏えい

スパイウェアは、以下の情報を収集します。

• Computer Name
• Username
• IP address
• Operating System Information
• Processor Information
• Installed Antivirus Products
• Running Processes

情報収集

スパイウェアは、HTTPポスト を介して、収集した情報を以下のURLに送信します。

• {BLOCKED}.{BLOCKED}.186.195:443/t5
• {BLOCKED}.{BLOCKED}.31.249:443/t5
• {BLOCKED}.{BLOCKED}.112.14:50000/t5
• {BLOCKED}.{BLOCKED}.176.218:443/t5
• {BLOCKED}.{BLOCKED}.176.97:443/t5
• {BLOCKED}.{BLOCKED}.45.81:2222/t5
• {BLOCKED}.{BLOCKED}.204.71:443/t5
• {BLOCKED}.{BLOCKED}.14.72:2222/t5
• {BLOCKED}.{BLOCKED}.25.165:443/t5
• {BLOCKED}.{BLOCKED}.236.149:443/t5
• {BLOCKED}.{BLOCKED}.147.177:2222/t5
• {BLOCKED}.{BLOCKED}.42.67:443/t5
• {BLOCKED}.{BLOCKED}.72.139:2222/t5
• {BLOCKED}.{BLOCKED}.101.164:50000/t5
• {BLOCKED}.{BLOCKED}.24.154:443/t5
• {BLOCKED}.{BLOCKED}.184.149:443/t5
• {BLOCKED}.{BLOCKED}.110.133:443/t5
• {BLOCKED}.{BLOCKED}.173.82:50001/t5
• {BLOCKED}.{BLOCKED}.17.149:2222/t5
• {BLOCKED}.{BLOCKED}.144.105:2222/t5
• {BLOCKED}.{BLOCKED}.7.6:995/t5
• {BLOCKED}.{BLOCKED}.204.82:2222/t5
• {BLOCKED}.{BLOCKED}.156.14:2222/t5
• {BLOCKED}.{BLOCKED}.53.166:443/t5
• {BLOCKED}.{BLOCKED}.158.118:995/t5
• {BLOCKED}.{BLOCKED}.69.229:2222/t5
• {BLOCKED}.{BLOCKED}.216.238:443/t5
• {BLOCKED}.{BLOCKED}.105.242:443/t5
• {BLOCKED}.{BLOCKED}.112.40:61202/t5
• {BLOCKED}.{BLOCKED}.206.65:995/t5
• {BLOCKED}.{BLOCKED}.14.107:443/t5
• {BLOCKED}.{BLOCKED}.154.19:443/t5
• {BLOCKED}.{BLOCKED}.173.82:995/t5
• {BLOCKED}.{BLOCKED}.204.2:2222/t5
• {BLOCKED}.{BLOCKED}.51.138:995/t5
• {BLOCKED}.{BLOCKED}.69.244:443/t5
• {BLOCKED}.{BLOCKED}.119.20:443/t5
• {BLOCKED}.{BLOCKED}.241.104:443/t5
• {BLOCKED}.{BLOCKED}.196.114:443/t5
• {BLOCKED}.{BLOCKED}.80.210:443/t5
• {BLOCKED}.{BLOCKED}.204.71:993/t5
• {BLOCKED}.{BLOCKED}.176.234:443/t5
• {BLOCKED}.{BLOCKED}.173.82:20/t5
• {BLOCKED}.{BLOCKED}.112.40:2078/t5
• {BLOCKED}.{BLOCKED}.86.238:995/t5
• {BLOCKED}.{BLOCKED}.200.140:443/t5
• {BLOCKED}.{BLOCKED}.22.28:2222/t5
• {BLOCKED}.{BLOCKED}.175.42:2222/t5
• {BLOCKED}.{BLOCKED}.210.63:2222/t5
• {BLOCKED}.{BLOCKED}.102.224:443/t5
• {BLOCKED}.{BLOCKED}.173.82:465/t5
• {BLOCKED}.{BLOCKED}.23.67:443/t5
• {BLOCKED}.{BLOCKED}.30.133:443/t5
• {BLOCKED}.{BLOCKED}.42.122:443/t5
• {BLOCKED}.{BLOCKED}.72.56:443/t5
• {BLOCKED}.{BLOCKED}.126.3:443/t5
• {BLOCKED}.{BLOCKED}.120.191:443/t5
• {BLOCKED}.{BLOCKED}.208.137:995/t5
• {BLOCKED}.{BLOCKED}.41.77:2222/t5
• {BLOCKED}.{BLOCKED}.48.205:443/t5
• {BLOCKED}.{BLOCKED}.123.159:2222/t5
• {BLOCKED}.{BLOCKED}.177.88:443/t5
• {BLOCKED}.{BLOCKED}.138.217:2222/t5
• {BLOCKED}.{BLOCKED}.173.82:32101/t5
• {BLOCKED}.{BLOCKED}.216.98:2222/t5
• {BLOCKED}.{BLOCKED}.117.95:2222/t5
• {BLOCKED}.{BLOCKED}.173.82:2087/t5
• {BLOCKED}.{BLOCKED}.252.153:995/t5
• {BLOCKED}.{BLOCKED}.48.233:443/t5
• {BLOCKED}.{BLOCKED}.26.14:995/t5
• {BLOCKED}.{BLOCKED}.196.11:443/t5
• {BLOCKED}.{BLOCKED}.173.82:990/t5
• {BLOCKED}.{BLOCKED}.221.16:443/t5
• {BLOCKED}.{BLOCKED}.214.138:2222/t5
• {BLOCKED}.{BLOCKED}.132.174:2222/t5
• {BLOCKED}.{BLOCKED}.100.207:995/t5
• {BLOCKED}.{BLOCKED}.243.113:50000/t5
• {BLOCKED}.{BLOCKED}.231.59:2222/t5
• {BLOCKED}.{BLOCKED}.101.183:443/t5
• {BLOCKED}.{BLOCKED}.202.22:443/t5
• {BLOCKED}.{BLOCKED}.51.242:993/t5
• {BLOCKED}.{BLOCKED}.191.120:2222/t5
• {BLOCKED}.{BLOCKED}.12.217:2222/t5
• {BLOCKED}.{BLOCKED}.204.71:995/t5
• {BLOCKED}.{BLOCKED}.108.183:995/t5
• {BLOCKED}.{BLOCKED}.98.62:995/t5
• {BLOCKED}.{BLOCKED}.115.68:32100/t5
• {BLOCKED}.{BLOCKED}.98.62:443/t5
• {BLOCKED}.{BLOCKED}.163.165:443/t5
• {BLOCKED}.{BLOCKED}.250.18:443/t5
• {BLOCKED}.{BLOCKED}.180.14:995/t5
• {BLOCKED}.{BLOCKED}.180.154:995/t5
• {BLOCKED}.{BLOCKED}.240.16:995/t5
• {BLOCKED}.{BLOCKED}.72.114:443/t5
• {BLOCKED}.{BLOCKED}.77.115:443/t5
• {BLOCKED}.{BLOCKED}.115.126:995/t5
• {BLOCKED}.{BLOCKED}.50.151:995/t5
• {BLOCKED}.{BLOCKED}.63.203:443/t5
• {BLOCKED}.{BLOCKED}.159.67:2222/t5
• {BLOCKED}.{BLOCKED}.111.66:995/t5
• {BLOCKED}.{BLOCKED}.17.92:443/t5
• {BLOCKED}.{BLOCKED}.74.165:443/t5
• {BLOCKED}.{BLOCKED}.84.65:443/t5
• {BLOCKED}.{BLOCKED}.186.116:2222/t5
• {BLOCKED}.{BLOCKED}.51.138:443/t5
• {BLOCKED}.{BLOCKED}.19.254:995/t5
• {BLOCKED}.{BLOCKED}.184.134:995/t5
• {BLOCKED}.{BLOCKED}.71.201:443/t5
• {BLOCKED}.{BLOCKED}.132.224:2222/t5
• {BLOCKED}.{BLOCKED}.173.82:995/t5
• {BLOCKED}.{BLOCKED}.122.74:443/t5
• {BLOCKED}.{BLOCKED}.125.215:995/t5
• {BLOCKED}.{BLOCKED}.116.233:443/t5
• {BLOCKED}.{BLOCKED}.91.69:443/t5
• {BLOCKED}.{BLOCKED}.7.228:443/t5
• {BLOCKED}.{BLOCKED}.226.137:995/t5
• {BLOCKED}.{BLOCKED}.175.47:2222/t5
• {BLOCKED}.{BLOCKED}.104.2:2222/t5
• {BLOCKED}.{BLOCKED}.95.10:443/t5
• {BLOCKED}.{BLOCKED}.97.83:995/t5

その他

スパイウェアは、以下のレジストリキーを追加します。

HKEY_CURRENT_USER\Software\Microsoft\
{Random}

スパイウェアは、以下のプロセスの存在を確認します。

• frida-winjector-helper-32.exe
• frida-winjector-helper-64.exe
• tcpdump.exe
• windump.exe
• ethereal.exe
• wireshark.exe
• ettercap.exe
• rtsniff.exe
• packetcapture.exe
• capturenet.exe
• qak-proxy
• dumpcap.exe
• CFF Explorer.exe
• not_rundll23.exe
• ProcessHacker.exe
• tcpview.exe
• filemon.exe
• procmon.exe
• idaq64.exe
• loaddll32.exe
• PETools.exe
• ImportREC.exe
• LordPE.exe
• Inspector.exe
• proc_analyzer.exe
• sysAnaylzer.exe
• sniff_hit.exe
• joeboxcontrol.exe
• joeboxserver.exe
• ResourceHacker.exe
• x64dbg.exe
• Fiddler.exe

スパイウェアは、以下を実行します。

• It checks the presence of the following Anti-Virus and Security Applications:
  • ccSvcHst.exe
  • NortonSecurity.exe
  • nsWscSvc.exe
  • avgcsrvx.exe
  • avgcsvcx.exe
  • avgcsrva.exe
  • MsMpEng.exe
  • mcshield.exe
  • avp.exe
  • kavtray.exe
  • egui.exe
  • ekrn.exe
  • bdagent.exe
  • vsserv.exe
  • vsservppl.exe
  • AvastSvc.exe
  • aswEngSrv.exe
  • aswToolsSvc.exe
  • afwServ.exe
  • aswidsagent.exe
  • AvastUI.exe
  • coreServiceShell.exe
  • PccNTMon.exe
  • NTRTScan.exe
  • SophosUI.exe
  • SAVAdminService.exe
  • SavService.exe
  • fshoster32.exe
  • WRSA.exe
  • vkise.exe
  • isesrv.exe
  • cmdagent.exe
  • Bytefence.exe
  • MBAMService.exe
  • mbamgui.exe
  • fmon.exe
  • dwengine.exe
  • dwarkdaemon.exe
  • dwwatcher.exe
  • SentinelServiceHost.exe
  • SentinelStaticEngine.exe
  • SentinelAgent.exe
  • SentinelStaticEngineScanner.exe
  • SentinelUI.exe
  • SonicWallClientProtectionService.exe
  • CynetEPS.exe
  • CynetMS.exe
  • CynetConsole.exe
  • CSFalconService.exe
  • CSFalconContainer.exe
  • RepUx.exe
  • CrAmTray.exe
  • csc_ui.exe
  • xagtnotif.exe
  • AppUIMonitor.exe
• After it is succesful in injecting its codes into its target process, it will wipe its original binary with zeros and leave only the headers intact.
• It establishes its persistence with the following routine:
  • It will only create its autostart registry entry if it detects that the system it is running on is about to restart or shutdown.
  • It will also write its code again in the original binary that was wiped previously before the system reboots or shutdowns.
  • When the system it is running on boots again, it would proceed to inject itself again to its target process and then proceed to wipe the binary and delete the autostart registry entry and binary.
• It stores its encrypted configuration in the registry key that it creates.

以下のスケジュールされたタスクを追加します：

• Task Name: {Random}
  Task Action: rundll32.exe {Malware Full Path and Name}.dll,Wind

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  対応方法

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