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Added to the Dr.Web virus database: 2023-03-17

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKCU>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Services and Controller app' = '%LOCALAPPDATA%\E5123559\services.exe'
  • [<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run] 'Services and Controller app' = '%LOCALAPPDATA%\E5123559\services.exe'
Creates or modifies the following files
  • <SYSTEM32>\tasks\services and controller app
Malicious functions
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
  • Windows Update
  • Windows Defender
blocks the following features:
  • User Account Control (UAC)
adds antivirus exclusion with following registry keys:
  • [<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Exclusions\Paths] '%LOCALAPPDATA%\E5123559' = '00000000'
  • [<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Exclusions\Paths] '<Current directory>' = '00000000'
Modifies file system
Creates the following files
  • %LOCALAPPDATA%\e5123559\services.exe
  • %LOCALAPPDATA%\e5123559\tor\libeay32.dll
  • %LOCALAPPDATA%\e5123559\tor\ssleay32.dll
  • %LOCALAPPDATA%\e5123559\tor\libevent_core-2-0-5.dll
  • %LOCALAPPDATA%\e5123559\tor\libevent-2-0-5.dll
  • %LOCALAPPDATA%\e5123559\tor\libgcc_s_sjlj-1.dll
  • %LOCALAPPDATA%\e5123559\tor\libssp-0.dll
  • %LOCALAPPDATA%\e5123559\tor\services.exe
  • %LOCALAPPDATA%\e5123559\tor\zlib1.dll
  • %LOCALAPPDATA%\e5123559\tor\torrc
  • %APPDATA%\tor\state.tmp
Moves the following files
  • from %APPDATA%\tor\state.tmp to %APPDATA%\tor\state
Deletes itself.
Network activity
Connects to
  • 'localhost':29007
  • 'localhost':49177
  • '21#.#3.154.33':443
  • 'localhost':49180
  • '19#.#49.223.69':443
  • '77.##7.181.164':443
  • '37.#00.98.5':443
  • '19#.#8.81.140':443
  • '81.#.11.186':443
  • '19#.#49.223.43':443
  • '13#.#88.40.189':443
  • 'localhost':29007
  • 'localhost':49183
Creates and executes the following
  • '%LOCALAPPDATA%\e5123559\services.exe'
  • '%LOCALAPPDATA%\e5123559\tor\services.exe' -f "%LOCALAPPDATA%\E5123559\tor\torrc"
  • '%WINDIR%\syswow64\schtasks.exe' /Change /TN "Microsoft\Windows\ExploitGuard\ExploitGuard MDM policy Refresh" /Disable' (with hidden window)
  • '%WINDIR%\syswow64\schtasks.exe' /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Cache Maintenance" /Disable' (with hidden window)
  • '%WINDIR%\syswow64\schtasks.exe' /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Cleanup" /Disable' (with hidden window)
  • '%WINDIR%\syswow64\schtasks.exe' /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Scheduled Scan" /Disable' (with hidden window)
  • '%WINDIR%\syswow64\schtasks.exe' /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Verification" /Disable' (with hidden window)
  • '%WINDIR%\syswow64\schtasks.exe' /create /tn "Services and Controller app" /sc MINUTE /mo 3 /tr "%LOCALAPPDATA%\E5123559\services.exe" /rl HIGHEST /f' (with hidden window)
  • '%LOCALAPPDATA%\e5123559\services.exe' ' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /C choice /C Y /N /D Y /T 3 & del /Q /S "<Full path to file>"' (with hidden window)
  • '%LOCALAPPDATA%\e5123559\tor\services.exe' -f "%LOCALAPPDATA%\E5123559\tor\torrc"' (with hidden window)
Executes the following
  • '%WINDIR%\syswow64\schtasks.exe' /Change /TN "Microsoft\Windows\ExploitGuard\ExploitGuard MDM policy Refresh" /Disable
  • '%WINDIR%\syswow64\schtasks.exe' /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Cache Maintenance" /Disable
  • '%WINDIR%\syswow64\schtasks.exe' /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Cleanup" /Disable
  • '%WINDIR%\syswow64\schtasks.exe' /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Scheduled Scan" /Disable
  • '%WINDIR%\syswow64\schtasks.exe' /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Verification" /Disable
  • '%WINDIR%\syswow64\schtasks.exe' /create /tn "Services and Controller app" /sc MINUTE /mo 3 /tr "%LOCALAPPDATA%\E5123559\services.exe" /rl HIGHEST /f
  • '%WINDIR%\syswow64\cmd.exe' /C choice /C Y /N /D Y /T 3 & del /Q /S "<Full path to file>"
  • '%WINDIR%\syswow64\choice.exe' /C Y /N /D Y /T 3

Curing recommendations

  1. If the operating system (OS) can be loaded (either normally or in safe mode), download Dr.Web Security Space and run a full scan of your computer and removable media you use. More about Dr.Web Security Space.
  2. If you cannot boot the OS, change the BIOS settings to boot your system from a CD or USB drive. Download the image of the emergency system repair disk Dr.Web® LiveDisk , mount it on a USB drive or burn it to a CD/DVD. After booting up with this media, run a full scan and cure all the detected threats.
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Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.

After booting up, run a full scan of all disk partitions with Dr.Web Anti-virus for Linux.

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  1. If the mobile device is operating normally, download and install Dr.Web for Android. Run a full system scan and follow recommendations to neutralize the detected threats.
  2. If the mobile device has been locked by Android.Locker ransomware (the message on the screen tells you that you have broken some law or demands a set ransom amount; or you will see some other announcement that prevents you from using the handheld normally), do the following:
    • Load your smartphone or tablet in the safe mode (depending on the operating system version and specifications of the particular mobile device involved, this procedure can be performed in various ways; seek clarification from the user guide that was shipped with the device, or contact its manufacturer);
    • Once you have activated safe mode, install the Dr.Web for Android onto the infected handheld and run a full scan of the system; follow the steps recommended for neutralizing the threats that have been detected;
    • Switch off your device and turn it on as normal.

Find out more about Dr.Web for Android

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