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Trojan.DownLoader23.36269

Added to the Dr.Web virus database: 2016-12-28

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Propagation VC Discovery Cryptographic' = '<SYSTEM32>\cxzhkyxsnp.exe'
Creates the following services:
  • [<HKLM>\SYSTEM\ControlSet001\Services\Collector Biometric Shell] 'ImagePath' = '<SYSTEM32>\cxzhkyxsnp.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Collector Biometric Shell] 'Start' = '00000002'
Malicious functions:
To complicate detection of its presence in the operating system,
blocks the following features:
  • Windows Security Center
Executes the following:
  • '<SYSTEM32>\xrstbsla.exe' "<SYSTEM32>\cxzhkyxsnp.exe"
  • '%WINDIR%\Temp\ydomemi2rceuyip.exe' -r 27992 tcp
  • '%TEMP%\ydomemi2on6uyiptsckxm.exe'
  • '<SYSTEM32>\cxzhkyxsnp.exe'
Modifies file system:
Creates the following files:
  • <SYSTEM32>\bdlfjwzventr\run
  • <SYSTEM32>\bdlfjwzventr\rng
  • %WINDIR%\Temp\ydomemi2rceuyip.exe
  • <SYSTEM32>\bdlfjwzventr\cfg
  • <SYSTEM32>\xrstbsla.exe
  • %TEMP%\ydomemi2on6uyiptsckxm.exe
  • <SYSTEM32>\bdlfjwzventr\tst
  • <SYSTEM32>\cxzhkyxsnp.exe
  • <SYSTEM32>\bdlfjwzventr\etc
Sets the 'hidden' attribute to the following files:
  • <SYSTEM32>\xrstbsla.exe
  • <SYSTEM32>\cxzhkyxsnp.exe
Deletes the following files:
  • %WINDIR%\Temp\ydomemi2rceuyip.exe
  • %TEMP%\ydomemi2on6uyiptsckxm.exe
Network activity:
Connects to:
  • 'qu###sugar.net':80
  • 'th###ass.net':80
  • 'qu###pass.net':80
  • 'th###tand.net':80
  • 'qu###stand.net':80
  • 'th###ugar.net':80
  • 'th###gain.net':80
  • 'he###ugar.net':80
  • 'ca###ugar.net':80
  • 'he###ass.net':80
  • 'qu###again.net':80
  • 'he###tand.net':80
  • 'ca###tand.net':80
  • 'su###yagain.net':80
  • 'me###ass.net':80
  • 'si###gain.net':80
  • 'me###gain.net':80
  • 'si###ugar.net':80
  • 'me###ugar.net':80
  • 'si###ass.net':80
  • 'mo###tand.net':80
  • 'mo###ass.net':80
  • 'su###ypass.net':80
  • 'mo###gain.net':80
  • 'su###ystand.net':80
  • 'mo###ugar.net':80
  • 'su###ysugar.net':80
  • 'ca###ass.net':80
  • 'li###hot.net':80
  • 'so###about.net':80
  • 'lo###oss.net':80
  • 'mo###ray.net':80
  • 'ju###ray.net':80
  • 'ab###ach.net':80
  • 'yo###njoy.net':80
  • 'pe###hecon.com':80
  • 'mo###uia.com':80
  • 'el#####arimagine.com':80
  • 'sa###ave.net':80
  • 'ta###wash.net':80
  • 'th###rrefk.com':80
  • 'wi###ugar.net':80
  • 'th###stand.net':80
  • 'si###sugar.net':80
  • 'th###sugar.net':80
  • 'he###gain.net':80
  • 'ca###gain.net':80
  • 'si###stand.net':80
  • 'si###pass.net':80
  • 'du###tand.net':80
  • 'wi###tand.net':80
  • 'du###ugar.net':80
  • 'th###pass.net':80
  • 'si###again.net':80
  • 'th###again.net':80
TCP:
HTTP GET requests:
  • http://qu###sugar.net/forum/search.php?me#########################################
  • http://th###ass.net/forum/search.php?me#########################################
  • http://qu###pass.net/forum/search.php?me#########################################
  • http://th###tand.net/forum/search.php?me#########################################
  • http://qu###stand.net/forum/search.php?me#########################################
  • http://th###ugar.net/forum/search.php?me#########################################
  • http://th###gain.net/forum/search.php?me#########################################
  • http://he###ugar.net/forum/search.php?me#########################################
  • http://ca###ugar.net/forum/search.php?me#########################################
  • http://he###ass.net/forum/search.php?me#########################################
  • http://qu###again.net/forum/search.php?me#########################################
  • http://he###tand.net/forum/search.php?me#########################################
  • http://ca###tand.net/forum/search.php?me#########################################
  • http://su###yagain.net/forum/search.php?me#########################################
  • http://me###ass.net/forum/search.php?me#########################################
  • http://si###gain.net/forum/search.php?me#########################################
  • http://me###gain.net/forum/search.php?me#########################################
  • http://si###ugar.net/forum/search.php?me#########################################
  • http://me###ugar.net/forum/search.php?me#########################################
  • http://si###ass.net/forum/search.php?me#########################################
  • http://mo###tand.net/forum/search.php?me#########################################
  • http://mo###ass.net/forum/search.php?me#########################################
  • http://su###ypass.net/forum/search.php?me#########################################
  • http://mo###gain.net/forum/search.php?me#########################################
  • http://su###ystand.net/forum/search.php?me#########################################
  • http://mo###ugar.net/forum/search.php?me#########################################
  • http://su###ysugar.net/forum/search.php?me#########################################
  • http://ca###ass.net/forum/search.php?me#########################################
  • http://li###hot.net/forum/search.php?me#########################################
  • http://so###about.net/forum/search.php?me#########################################
  • http://lo###oss.net/forum/search.php?me#########################################
  • http://mo###ray.net/forum/search.php?me#########################################
  • http://ju###ray.net/forum/search.php?me#########################################
  • http://ab###ach.net/forum/search.php?me#########################################
  • http://yo###njoy.net/forum/search.php?me#########################################
  • http://pe###hecon.com/forum/search.php?me#########################################
  • http://mo###uia.com/forum/search.php?me#########################################
  • http://el#####arimagine.com/forum/search.php?me#########################################
  • http://sa###ave.net/forum/search.php?me#########################################
  • http://ta###wash.net/forum/search.php?me#########################################
  • http://th###rrefk.com/forum/search.php?me#########################################
  • http://wi###ugar.net/forum/search.php?me#########################################
  • http://th###stand.net/forum/search.php?me#########################################
  • http://si###sugar.net/forum/search.php?me#########################################
  • http://th###sugar.net/forum/search.php?me#########################################
  • http://he###gain.net/forum/search.php?me#########################################
  • http://ca###gain.net/forum/search.php?me#########################################
  • http://si###stand.net/forum/search.php?me#########################################
  • http://si###pass.net/forum/search.php?me#########################################
  • http://du###tand.net/forum/search.php?me#########################################
  • http://wi###tand.net/forum/search.php?me#########################################
  • http://du###ugar.net/forum/search.php?me#########################################
  • http://th###pass.net/forum/search.php?me#########################################
  • http://si###again.net/forum/search.php?me#########################################
  • http://th###again.net/forum/search.php?me#########################################
UDP:
  • DNS ASK qu###sugar.net
  • DNS ASK th###ass.net
  • DNS ASK qu###pass.net
  • DNS ASK th###ugar.net
  • DNS ASK su###yagain.net
  • DNS ASK th###tand.net
  • DNS ASK qu###stand.net
  • DNS ASK he###ugar.net
  • DNS ASK ca###ugar.net
  • DNS ASK he###ass.net
  • DNS ASK ca###tand.net
  • DNS ASK th###gain.net
  • DNS ASK qu###again.net
  • DNS ASK he###tand.net
  • DNS ASK me###ass.net
  • DNS ASK si###gain.net
  • DNS ASK me###gain.net
  • DNS ASK si###ass.net
  • DNS ASK me###tand.net
  • DNS ASK si###ugar.net
  • DNS ASK me###ugar.net
  • DNS ASK mo###ass.net
  • DNS ASK su###ypass.net
  • DNS ASK mo###gain.net
  • DNS ASK su###ysugar.net
  • DNS ASK mo###tand.net
  • DNS ASK su###ystand.net
  • DNS ASK mo###ugar.net
  • DNS ASK ca###ass.net
  • DNS ASK li###hot.net
  • DNS ASK so###about.net
  • DNS ASK lo###oss.net
  • DNS ASK mo###ray.net
  • DNS ASK ju###ray.net
  • DNS ASK ab###ach.net
  • DNS ASK yo###njoy.net
  • DNS ASK pe###hecon.com
  • DNS ASK mo###uia.com
  • DNS ASK el#####arimagine.com
  • DNS ASK sa###ave.net
  • DNS ASK ta###wash.net
  • DNS ASK th###rrefk.com
  • DNS ASK wi###ugar.net
  • DNS ASK th###stand.net
  • DNS ASK si###sugar.net
  • DNS ASK th###sugar.net
  • DNS ASK he###gain.net
  • DNS ASK ca###gain.net
  • DNS ASK si###stand.net
  • DNS ASK si###pass.net
  • DNS ASK du###tand.net
  • DNS ASK wi###tand.net
  • DNS ASK du###ugar.net
  • DNS ASK th###pass.net
  • DNS ASK si###again.net
  • DNS ASK th###again.net
  • '23#.#55.255.250':1900

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.
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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.

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