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BackDoor.Caphaw.113

Added to the Dr.Web virus database: 2015-06-18

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'F1SNsvF4j3Qpz13oCVbfFCWgKw==' = '"%APPDATA%\Mozilla\Firefox\cipher.exe"'
Malicious functions:
Injects code into
the following system processes:
  • <SYSTEM32>\cmd.exe
  • <SYSTEM32>\cscript.exe
  • %WINDIR%\Explorer.EXE
  • <SYSTEM32>\ctfmon.exe
a large number of user processes.
Terminates or attempts to terminate
the following user processes:
  • safari.exe
  • opera.exe
  • chrome.exe
Modifies settings of Windows Internet Explorer:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '2500' = '00000003'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1609' = '00000003'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1406' = '00000003'
Modifies file system :
Creates the following files:
  • %APPDATA%\Mozilla\Firefox\cipher.exe
Deletes itself.
Network activity:
Connects to:
  • '8l#####9g6zp9.umc.su':443
  • '31#######87xy5kg.www5.umc.su':443
  • 'rf#####i7d6r3.jeo.cc':443
  • 'n0#####17kxf5cqo.umc.su':443
  • 'fd####g8rl.jeo.cc':443
  • 'bf####3ol.umc.su':443
  • 'v7#####qvfuumw.umc.su':443
  • 'o1####gcvnb.gmz.cc':443
UDP:
  • DNS ASK c3####16q.umc.su
  • DNS ASK u7####.www5.gmz.cc
  • DNS ASK k8####84c4.gmz.cc
  • DNS ASK m3#####p7kzbj5az.jeo.cc
  • DNS ASK 5q#######gn8t3d8g.www5.jeo.cc
  • DNS ASK 4f######ihnwz81tt.umc.su
  • DNS ASK dr######7fmihqecjo.gmz.cc
  • DNS ASK 37#####wrgq.www5.umc.su
  • DNS ASK tw###n.jeo.cc
  • DNS ASK vq####9qboa.gmz.cc
  • DNS ASK 1m#####5bye25l40.umc.su
  • DNS ASK hs#####ttztaz.gmz.cc
  • DNS ASK cn###h9.gmz.cc
  • DNS ASK 9t#####8qmv8vu.jeo.cc
  • DNS ASK 10####qx6.jeo.cc
  • DNS ASK 0q###wc.jeo.cc
  • DNS ASK w3#####8z3p0r.umc.su
  • DNS ASK hy###tk.umc.su
  • DNS ASK kh####mq0dnu.gmz.cc
  • DNS ASK 62#####opqd9381x.jeo.cc
  • DNS ASK n0#####17kxf5cqo.umc.su
  • DNS ASK 8l#####9g6zp9.umc.su
  • DNS ASK 0s#####cz7.www5.jeo.cc
  • DNS ASK rf#####i7d6r3.jeo.cc
  • DNS ASK 31#######87xy5kg.www5.umc.su
  • DNS ASK fd####g8rl.jeo.cc
  • DNS ASK bf####3ol.umc.su
  • DNS ASK v7#####qvfuumw.umc.su
  • DNS ASK o1####gcvnb.gmz.cc
  • DNS ASK cn#####kps58dx.jeo.cc
  • DNS ASK t8####vpx41.jeo.cc
  • DNS ASK bs###dej.umc.su
  • DNS ASK y4####27c5.umc.su
  • DNS ASK pg#####xnv4h5.gmz.cc
  • DNS ASK 2q#####5inkt4.gmz.cc
  • DNS ASK 9u###wrk.gmz.cc
  • DNS ASK xq#####stb08kn.jeo.cc
  • DNS ASK 2b#####n82sxiu.gmz.cc
  • DNS ASK 6l######kn707u8.www5.gmz.cc
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Shell_TrayWnd' WindowName: ''
  • ClassName: 'Indicator' WindowName: ''

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.
Download Dr.Web

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