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Trojan.Siggen10.31460

Added to the Dr.Web virus database: 2020-09-28

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run] 'Malwarebytes Anti-Exploit' = '%ProgramFiles(x86)%\Malwarebytes Anti-Exploit\mbae.exe'
Sets the following service settings
  • [<HKLM>\System\CurrentControlSet\Services\MbaeSvc] 'Start' = '00000002'
  • [<HKLM>\System\CurrentControlSet\Services\MbaeSvc] 'ImagePath' = '"%ProgramFiles(x86)%\Malwarebytes Anti-Exploit\mbae-svc.exe"'
  • [<HKLM>\System\CurrentControlSet\Services\ESProtectionDriver] 'Start' = '00000001'
  • [<HKLM>\System\CurrentControlSet\Services\ESProtectionDriver] 'ImagePath' = '%ProgramFiles(x86)%\Malwarebytes Anti-Exploit\mbae64.sys'
Creates the following services
  • 'MbaeSvc' "%ProgramFiles(x86)%\Malwarebytes Anti-Exploit\mbae-svc.exe"
  • 'MbaeSvc' %ProgramFiles(x86)%\Malwarebytes Anti-Exploit\mbae-svc.exe
  • 'ESProtectionDriver' %ProgramFiles(x86)%\Malwarebytes Anti-Exploit\mbae64.sys
Malicious functions
Injects code into
the following system processes:
  • <SYSTEM32>\cmd.exe
the following user processes:
  • iexplore.exe
Terminates or attempts to terminate
the following user processes:
  • firefox.exe
  • iexplore.exe
Modifies file system
Creates the following files
  • %TEMP%\autee44.tmp
  • %ALLUSERSPROFILE%\malwarebytes anti-exploit\mbae-config.dat
  • %WINDIR%\temp\udd51d7.tmp
  • %ALLUSERSPROFILE%\malwarebytes anti-exploit\mbae-protector.xpe
  • %ALLUSERSPROFILE%\malwarebytes anti-exploit\mbae-svc.dat
  • %ALLUSERSPROFILE%\malwarebytes anti-exploit\mbae-service.log
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\malwarebytes anti-exploit\malwarebytes anti-exploit.lnk
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\malwarebytes anti-exploit\uninstall malwarebytes anti-exploit.lnk
  • %ProgramFiles(x86)%\malwarebytes anti-exploit\mbae-uninstall.log
  • %ALLUSERSPROFILE%\malwarebytes anti-exploit\mbae-default.log
  • %ProgramFiles(x86)%\malwarebytes anti-exploit\unins000.dat
  • %WINDIR%\syswow64\config\systemprofile\appdata\locallow\microsoft\cryptneturlcache\content\edc238bff48a31d55a97e1e93892934b_c20e0da2d0f89fe526e1490f4a2ee5ab
  • %WINDIR%\syswow64\config\systemprofile\appdata\locallow\microsoft\cryptneturlcache\metadata\35ddedf268117918d1d277a171d8df7b_02727cd9429a91dc1d2c7be7dfefde99
  • %WINDIR%\syswow64\config\systemprofile\appdata\locallow\microsoft\cryptneturlcache\content\35ddedf268117918d1d277a171d8df7b_02727cd9429a91dc1d2c7be7dfefde99
  • %WINDIR%\syswow64\config\systemprofile\appdata\locallow\microsoft\cryptneturlcache\metadata\bec6224b02d155a396218a2504f3ee0b
  • %WINDIR%\syswow64\config\systemprofile\appdata\locallow\microsoft\cryptneturlcache\content\bec6224b02d155a396218a2504f3ee0b
  • %WINDIR%\syswow64\config\systemprofile\appdata\locallow\microsoft\cryptneturlcache\metadata\739f2ff4259cdc6cbe7b90f1a95601ef
  • %WINDIR%\syswow64\config\systemprofile\appdata\locallow\microsoft\cryptneturlcache\content\739f2ff4259cdc6cbe7b90f1a95601ef
  • %ALLUSERSPROFILE%\malwarebytes anti-exploit\mbae-report.dat
  • %WINDIR%\syswow64\config\systemprofile\appdata\locallow\microsoft\cryptneturlcache\metadata\edc238bff48a31d55a97e1e93892934b_c20e0da2d0f89fe526e1490f4a2ee5ab
  • %ProgramFiles(x86)%\malwarebytes anti-exploit\is-rtlst.tmp
  • %ProgramFiles(x86)%\malwarebytes anti-exploit\is-bonkp.tmp
  • %ProgramFiles(x86)%\malwarebytes anti-exploit\is-hc5bs.tmp
  • %TEMP%\aut6f3.tmp
  • %WINDIR%\schemas\eapel\setup.exe
  • %TEMP%\aut87a.tmp
  • %WINDIR%\schemas\eapel\reg.reg
  • %TEMP%\is-n0gjj.tmp\setup.tmp
  • %TEMP%\is-n21jn.tmp\_isetup\_setup64.tmp
  • %TEMP%\is-n21jn.tmp\_isetup\_shfoldr.dll
  • %ProgramFiles(x86)%\malwarebytes anti-exploit\is-m33f3.tmp
  • %WINDIR%\schemas\eapel\banner.jpg
  • %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\is-d8ei5.tmp
  • %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\is-hfvhk.tmp
  • %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\is-gj53k.tmp
  • %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\is-sbijp.tmp
  • %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\is-kemjr.tmp
  • %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\is-32l0e.tmp
  • %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\is-lg8sj.tmp
  • %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\is-davrm.tmp
  • %ProgramFiles(x86)%\malwarebytes anti-exploit\is-orsib.tmp
  • %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\is-d5n4m.tmp
  • %WINDIR%\syswow64\config\systemprofile\appdata\locallow\microsoft\cryptneturlcache\metadata\35ddedf268117918d1d277a171d8df7b_745a5d32ec1306e9394282e9e679293d
  • %WINDIR%\syswow64\config\systemprofile\appdata\locallow\microsoft\cryptneturlcache\content\35ddedf268117918d1d277a171d8df7b_745a5d32ec1306e9394282e9e679293d
Deletes the following files
  • %TEMP%\autee44.tmp
  • %TEMP%\aut6f3.tmp
  • %TEMP%\aut87a.tmp
  • %WINDIR%\temp\udd51d7.tmp
  • %TEMP%\is-n21jn.tmp\_isetup\_setup64.tmp
  • %TEMP%\is-n21jn.tmp\_isetup\_shfoldr.dll
  • %TEMP%\is-n0gjj.tmp\setup.tmp
  • %WINDIR%\schemas\eapel\banner.jpg
  • %WINDIR%\schemas\eapel\reg.reg
  • %WINDIR%\schemas\eapel\setup.exe
Moves the following files
  • from %ProgramFiles(x86)%\malwarebytes anti-exploit\is-m33f3.tmp to %ProgramFiles(x86)%\malwarebytes anti-exploit\unins000.exe
  • from %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\mbae.exe to %ProgramFiles(x86)%\malwarebytes anti-exploit\mbae.exe
  • from %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\mbae64.sys to %ProgramFiles(x86)%\malwarebytes anti-exploit\mbae64.sys
  • from %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\mbae.sys to %ProgramFiles(x86)%\malwarebytes anti-exploit\mbae.sys
  • from %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\mbae-api-na.dll to %ProgramFiles(x86)%\malwarebytes anti-exploit\mbae-api-na.dll
  • from %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\mbae-api.dll to %ProgramFiles(x86)%\malwarebytes anti-exploit\mbae-api.dll
  • from %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\mbae64.dll to %ProgramFiles(x86)%\malwarebytes anti-exploit\mbae64.dll
  • from %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\mbae.dll to %ProgramFiles(x86)%\malwarebytes anti-exploit\mbae.dll
  • from %ProgramFiles(x86)%\malwarebytes anti-exploit\is-rtlst.tmp to %ProgramFiles(x86)%\malwarebytes anti-exploit\changelog.txt
  • from %ProgramFiles(x86)%\malwarebytes anti-exploit\is-bonkp.tmp to %ProgramFiles(x86)%\malwarebytes anti-exploit\mbae.chm
  • from %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\mbae64.exe to %ProgramFiles(x86)%\malwarebytes anti-exploit\mbae64.exe
  • from %ProgramFiles(x86)%\malwarebytes anti-exploit\is-hc5bs.tmp to %ProgramFiles(x86)%\malwarebytes anti-exploit\license.rtf
  • from %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\is-davrm.tmp to %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\mbae.dll
  • from %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\is-lg8sj.tmp to %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\mbae-api-na.dll
  • from %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\is-32l0e.tmp to %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\mbae-api.dll
  • from %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\is-kemjr.tmp to %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\mbae.sys
  • from %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\is-sbijp.tmp to %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\mbae-svc.exe
  • from %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\is-gj53k.tmp to %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\mbae.exe
  • from %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\is-hfvhk.tmp to %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\mbae64.dll
  • from %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\is-d5n4m.tmp to %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\mbae64.sys
  • from %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\is-d8ei5.tmp to %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\mbae64.exe
  • from %ProgramFiles(x86)%\malwarebytes anti-exploit\is-orsib.tmp to %ProgramFiles(x86)%\malwarebytes anti-exploit\mbae-uninstaller.exe
  • from %ProgramFiles(x86)%\malwarebytes anti-exploit\tmp\mbae-svc.exe to %ProgramFiles(x86)%\malwarebytes anti-exploit\mbae-svc.exe
Network activity
TCP
  • 'si####.mwbsys.com':443
  • 'st###.#bamupdates.com':443
UDP
  • DNS ASK si####.mwbsys.com
  • DNS ASK st###.#bamupdates.com
Miscellaneous
Searches for the following windows
  • ClassName: 'MainGuiAnti-Exploit' WindowName: ''
  • ClassName: 'RegEdit_RegEdit' WindowName: ''
Creates and executes the following
  • '%WINDIR%\schemas\eapel\setup.exe' /VERYSILENT
  • '%TEMP%\is-n0gjj.tmp\setup.tmp' /SL5="$100154,1763115,56832,%WINDIR%\schemas\EAPEl\setup.exe" /VERYSILENT
  • '%ProgramFiles(x86)%\malwarebytes anti-exploit\mbae-uninstaller.exe' /install
  • '%ProgramFiles(x86)%\malwarebytes anti-exploit\mbae-svc.exe' -install
  • '%ProgramFiles(x86)%\malwarebytes anti-exploit\mbae-svc.exe'
  • '%ProgramFiles(x86)%\malwarebytes anti-exploit\mbae64.exe' /mbt
  • '%ProgramFiles(x86)%\malwarebytes anti-exploit\mbae64.exe' /Start 0 "eqnedt32.exe|winrar.exe|winzip.exe|7z.exe|7zFM.exe|7zG.exe|S7Z.exe|7zextractor.exe|Winzip32.exe|Winzip64.exe|wzdisktools.exe|winzipss.exe|cmd.exe|winhlp32.exe|mshta.exe|wscript.exe|cs...
  • '%ProgramFiles(x86)%\malwarebytes anti-exploit\mbae.exe'
  • '<SYSTEM32>\cmd.exe' /C setup.exe /VERYSILENT' (with hidden window)
  • '%ProgramFiles(x86)%\malwarebytes anti-exploit\mbae-uninstaller.exe' /install' (with hidden window)
  • '%WINDIR%\regedit.exe' /S reg.reg' (with hidden window)
Executes the following
  • '<SYSTEM32>\cmd.exe' /c netsh interface set interface name="Ethernet" admin=disabled
  • '<SYSTEM32>\netsh.exe' interface set interface name="Ethernet" admin=disabled
  • '<SYSTEM32>\cmd.exe' /C setup.exe /VERYSILENT
  • '%WINDIR%\regedit.exe' /S reg.reg
  • '<SYSTEM32>\cmd.exe' /c netsh interface set interface name="Ethernet" admin=enabled
  • '<SYSTEM32>\netsh.exe' interface set interface name="Ethernet" admin=enabled

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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Download by serial number

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.

Download Dr.Web

Download by serial number

  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