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BackDoor.Caphaw.106

Added to the Dr.Web virus database: 2015-06-17

Virus description added: 2015-06-17

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'sfF3hHoszkLvC0jfFCeS' = '"%APPDATA%\Microsoft\MMC\clipbrd.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%\Microsoft\MMC\clipbrd.exe

Deletes itself.

Network activity:

Connects to:

'tk#####1tuq5ny.vbp.cc':443
'eq#####eryoh7rxu.vbp.cc':443
'1g#####m859dl7o8.vbp.cc':443
'ol######ds8qpfgn2y.vbp.cc':443
'ol#####geokrmm.vbp.cc':443
'm4####1vq41z.ubd.cc':443
'es#####fd42nuao.gmz.cc':443

UDP:

DNS ASK vb###s5.ubd.cc
DNS ASK o0####qjbbb.vbp.cc
DNS ASK n8####px5y5.vbp.cc
DNS ASK h7#####r5e9y8.gmz.cc
DNS ASK z8#####swqmx49n.gmz.cc
DNS ASK de####803.gmz.cc
DNS ASK fm######4s9f5dmzn.gmz.cc
DNS ASK 8v######v9xcowkjp.ubd.cc
DNS ASK n4#####oklegv.vbp.cc
DNS ASK vq####cpqd.ubd.cc
DNS ASK db#####048iv5.gmz.cc
DNS ASK 7i####9jne.ubd.cc
DNS ASK 18###za.ubd.cc
DNS ASK zg#####x1ji8a.vbp.cc
DNS ASK sa####vzflqh.vbp.cc
DNS ASK 8n####pg47p.vbp.cc
DNS ASK c2###fv5.gmz.cc
DNS ASK mv#####oetr8t.gmz.cc
DNS ASK ht#####2quigqm.ubd.cc
DNS ASK 1g#####m859dl7o8.vbp.cc
DNS ASK eq#####eryoh7rxu.vbp.cc
DNS ASK 8y###b.ubd.cc
DNS ASK qx####oe5m1.ubd.cc
DNS ASK tk#####1tuq5ny.vbp.cc
DNS ASK m4####1vq41z.ubd.cc
DNS ASK ol#####geokrmm.vbp.cc
DNS ASK ol######ds8qpfgn2y.vbp.cc
DNS ASK es#####fd42nuao.gmz.cc
DNS ASK 2b#####gsdtwll.ubd.cc
DNS ASK nu#####vesrj2yu.vbp.cc
DNS ASK us###g1.vbp.cc
DNS ASK 9o#####qyugyd.ubd.cc
DNS ASK 3z###ig.ubd.cc
DNS ASK yz###22.gmz.cc
DNS ASK gk#####3qzlqe4t7.gmz.cc
DNS ASK s0####k2oj.ubd.cc
DNS ASK 4e#####p97mpdit.gmz.cc
DNS ASK nx#####5kfj3u7d.gmz.cc

Miscellaneous:

Searches for the following windows:

ClassName: 'Indicator' WindowName: ''

Curing recommendations

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.
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.

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Download on App Store

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

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.
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.

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