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Trojan.DownLoader8.14335

Added to the Dr.Web virus database: 2013-03-01

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Health Credential Audio Config Portable' = '<SYSTEM32>\bzgyfcbsoq.exe'
Creates or modifies the following files:
  • %HOMEPATH%\Start Menu\Programs\Startup\bzgyfcbsoq.exe
Creates the following services:
  • [<HKLM>\SYSTEM\ControlSet001\Services\Resource Network Telephony Upgrade] 'Start' = '00000002'
Malicious functions:
To complicate detection of its presence in the operating system,
blocks the following features:
  • Windows Security Center
Creates and executes the following:
  • <SYSTEM32>\czwzyoju.exe "<SYSTEM32>\bzgyfcbsoq.exe"
  • %WINDIR%\Temp\wul3udo4h94jd.exe -r 39387 tcp
  • %TEMP%\wul3udo4ec3jtpbzis.exe
  • <SYSTEM32>\bzgyfcbsoq.exe
Modifies file system :
Creates the following files:
  • <SYSTEM32>\klmysobvtszcesa\run
  • <SYSTEM32>\klmysobvtszcesa\rng
  • <SYSTEM32>\klmysobvtszcesa\cfg
  • <SYSTEM32>\klmysobvtszcesa\por
  • %WINDIR%\Temp\wul3udo4h94jd.exe
  • %TEMP%\wul3udo4ec3jtpbzis.exe
  • <SYSTEM32>\klmysobvtszcesa\tst
  • <SYSTEM32>\klmysobvtszcesa\etc
  • <SYSTEM32>\czwzyoju.exe
  • <SYSTEM32>\bzgyfcbsoq.exe
Sets the 'hidden' attribute to the following files:
  • <SYSTEM32>\czwzyoju.exe
  • <SYSTEM32>\bzgyfcbsoq.exe
Deletes the following files:
  • %WINDIR%\Temp\wul3udo4h94jd.exe
  • %TEMP%\wul3udo4ec3jtpbzis.exe
  • <DRIVERS>\etc\hosts
Substitutes the HOSTS file.
Network activity:
Connects to:
  • 'up###lack.net':80
  • 'wh###black.net':80
  • 'wh###grown.net':80
  • 'wh###plain.net':80
  • 'up###rown.net':80
  • 'sp###tep.net':80
  • 'sp###rown.net':80
  • 'sa###rown.net':80
  • 'sa###lain.net':80
  • 'sa###tep.net':80
  • 'sp###lain.net':80
  • 'so###plain.net':80
  • 'ar###grown.net':80
  • 'ar###plain.net':80
  • 'ar###step.net':80
  • 'so###step.net':80
  • 'so###grown.net':80
  • 'wh###step.net':80
  • 'up###lain.net':80
  • 'up###tep.net':80
  • 'ar###black.net':80
  • 'so###black.net':80
  • 'sp###lack.net':80
  • 'gr###grown.net':80
  • 'eq###black.net':80
  • 'eq###grown.net':80
  • 'eq###plain.net':80
  • 'gr###plain.net':80
  • 'gr###black.net':80
  • 'vi###plain.net':80
  • 'sp###grown.net':80
  • 'sp###plain.net':80
  • 'sp###step.net':80
  • 'vi###step.net':80
  • 'gl###lain.net':80
  • 'ta###plain.net':80
  • 'ta###step.net':80
  • 'sa###lack.net':80
  • 'gl###tep.net':80
  • 'gl###rown.net':80
  • 'eq###step.net':80
  • 'gr###step.net':80
  • 'ta###black.net':80
  • 'ta###grown.net':80
  • 'gl###lack.net':80
  • 'se####beragain.net':80
  • 'ha###ass.net':80
  • 'ha###gain.net':80
  • 'fr###stand.net':80
  • 'of###stand.net':80
  • 'se####berpass.net':80
  • 'se####berstand.net':80
  • 'jo###gain.net':80
  • 'ha###tand.net':80
  • 'ha###ugar.net':80
  • 'se####bersugar.net':80
  • 'go#####everytime.com':80
  • 'sp###stand.net':80
  • 'ja###uter.com':80
  • 'do####club-grup.com':80
  • 'el#####arimagine.com':80
  • 'fr###again.net':80
  • 'fr###sugar.net':80
  • 'of###sugar.net':80
  • 'of###pass.net':80
  • 'of###again.net':80
  • 'fr###pass.net':80
  • 'wi###gain.net':80
  • 'wr###again.net':80
  • 'ma###gain.net':80
  • 'ro###tand.net':80
  • 'ro###ugar.net':80
  • 'de###tand.net':80
  • 'wr###pass.net':80
  • 'wr###stand.net':80
  • 'ma###tand.net':80
  • 'ma###ugar.net':80
  • 'ma###ass.net':80
  • 'wr###sugar.net':80
  • 'wi###ugar.net':80
  • 'jo###tand.net':80
  • 'jo###ugar.net':80
  • 'jo###ass.net':80
  • 'wi###ass.net':80
  • 'wi###tand.net':80
  • 'ro###ass.net':80
  • 'de###ugar.net':80
  • 'de###ass.net':80
  • 'de###gain.net':80
  • 'ro###gain.net':80
TCP:
HTTP GET requests:
  • up###lack.net/forum/search.php?me#########################################
  • wh###black.net/forum/search.php?me#########################################
  • wh###grown.net/forum/search.php?me#########################################
  • wh###plain.net/forum/search.php?me#########################################
  • up###rown.net/forum/search.php?me#########################################
  • sp###tep.net/forum/search.php?me#########################################
  • sp###rown.net/forum/search.php?me#########################################
  • sa###rown.net/forum/search.php?me#########################################
  • sa###lain.net/forum/search.php?me#########################################
  • sa###tep.net/forum/search.php?me#########################################
  • sp###lain.net/forum/search.php?me#########################################
  • so###plain.net/forum/search.php?me#########################################
  • ar###grown.net/forum/search.php?me#########################################
  • ar###plain.net/forum/search.php?me#########################################
  • ar###step.net/forum/search.php?me#########################################
  • so###step.net/forum/search.php?me#########################################
  • so###grown.net/forum/search.php?me#########################################
  • wh###step.net/forum/search.php?me#########################################
  • up###lain.net/forum/search.php?me#########################################
  • up###tep.net/forum/search.php?me#########################################
  • ar###black.net/forum/search.php?me#########################################
  • so###black.net/forum/search.php?me#########################################
  • sp###lack.net/forum/search.php?me#########################################
  • gr###grown.net/forum/search.php?me#########################################
  • eq###black.net/forum/search.php?me#########################################
  • eq###grown.net/forum/search.php?me#########################################
  • eq###plain.net/forum/search.php?me#########################################
  • gr###plain.net/forum/search.php?me#########################################
  • gr###black.net/forum/search.php?me#########################################
  • vi###plain.net/forum/search.php?me#########################################
  • sp###grown.net/forum/search.php?me#########################################
  • sp###plain.net/forum/search.php?me#########################################
  • sp###step.net/forum/search.php?me#########################################
  • vi###step.net/forum/search.php?me#########################################
  • gl###lain.net/forum/search.php?me#########################################
  • ta###plain.net/forum/search.php?me#########################################
  • ta###step.net/forum/search.php?me#########################################
  • sa###lack.net/forum/search.php?me#########################################
  • gl###tep.net/forum/search.php?me#########################################
  • gl###rown.net/forum/search.php?me#########################################
  • eq###step.net/forum/search.php?me#########################################
  • gr###step.net/forum/search.php?me#########################################
  • ta###black.net/forum/search.php?me#########################################
  • ta###grown.net/forum/search.php?me#########################################
  • gl###lack.net/forum/search.php?me#########################################
  • se####beragain.net/forum/search.php?me#########################################
  • ha###ass.net/forum/search.php?me#########################################
  • ha###gain.net/forum/search.php?me#########################################
  • fr###stand.net/forum/search.php?me#########################################
  • of###stand.net/forum/search.php?me#########################################
  • se####berpass.net/forum/search.php?me#########################################
  • se####berstand.net/forum/search.php?me#########################################
  • jo###gain.net/forum/search.php?me#########################################
  • ha###tand.net/forum/search.php?me#########################################
  • ha###ugar.net/forum/search.php?me#########################################
  • se####bersugar.net/forum/search.php?me#########################################
  • go#####everytime.com/forum/search.php?me#########################################
  • sp###stand.net/forum/search.php?me#########################################
  • ja###uter.com/forum/search.php?me#########################################
  • do####club-grup.com/forum/search.php?me#########################################
  • el#####arimagine.com/forum/search.php?me#########################################
  • fr###again.net/forum/search.php?me#########################################
  • fr###sugar.net/forum/search.php?me#########################################
  • of###sugar.net/forum/search.php?me#########################################
  • of###pass.net/forum/search.php?me#########################################
  • of###again.net/forum/search.php?me#########################################
  • fr###pass.net/forum/search.php?me#########################################
  • wi###gain.net/forum/search.php?me#########################################
  • wr###again.net/forum/search.php?me#########################################
  • ma###gain.net/forum/search.php?me#########################################
  • ro###tand.net/forum/search.php?me#########################################
  • ro###ugar.net/forum/search.php?me#########################################
  • de###tand.net/forum/search.php?me#########################################
  • wr###pass.net/forum/search.php?me#########################################
  • wr###stand.net/forum/search.php?me#########################################
  • ma###tand.net/forum/search.php?me#########################################
  • ma###ugar.net/forum/search.php?me#########################################
  • ma###ass.net/forum/search.php?me#########################################
  • wr###sugar.net/forum/search.php?me#########################################
  • wi###ugar.net/forum/search.php?me#########################################
  • jo###tand.net/forum/search.php?me#########################################
  • jo###ugar.net/forum/search.php?me#########################################
  • jo###ass.net/forum/search.php?me#########################################
  • wi###ass.net/forum/search.php?me#########################################
  • wi###tand.net/forum/search.php?me#########################################
  • ro###ass.net/forum/search.php?me#########################################
  • de###ugar.net/forum/search.php?me#########################################
  • de###ass.net/forum/search.php?me#########################################
  • de###gain.net/forum/search.php?me#########################################
  • ro###gain.net/forum/search.php?me#########################################
UDP:
  • DNS ASK up###lack.net
  • DNS ASK wh###black.net
  • DNS ASK wh###grown.net
  • DNS ASK wh###plain.net
  • DNS ASK up###rown.net
  • DNS ASK sp###tep.net
  • DNS ASK sp###rown.net
  • DNS ASK sa###rown.net
  • DNS ASK sa###lain.net
  • DNS ASK sa###tep.net
  • DNS ASK sp###lain.net
  • DNS ASK so###plain.net
  • DNS ASK ar###grown.net
  • DNS ASK ar###plain.net
  • DNS ASK ar###step.net
  • DNS ASK so###step.net
  • DNS ASK so###grown.net
  • DNS ASK wh###step.net
  • DNS ASK up###lain.net
  • DNS ASK up###tep.net
  • DNS ASK ar###black.net
  • DNS ASK so###black.net
  • DNS ASK sp###lack.net
  • DNS ASK gr###grown.net
  • DNS ASK eq###black.net
  • DNS ASK eq###grown.net
  • DNS ASK eq###plain.net
  • DNS ASK gr###plain.net
  • DNS ASK gr###black.net
  • DNS ASK vi###plain.net
  • DNS ASK sp###grown.net
  • DNS ASK sp###plain.net
  • DNS ASK sp###step.net
  • DNS ASK vi###step.net
  • DNS ASK gl###lain.net
  • DNS ASK ta###plain.net
  • DNS ASK ta###step.net
  • DNS ASK sa###lack.net
  • DNS ASK gl###tep.net
  • DNS ASK gl###rown.net
  • DNS ASK eq###step.net
  • DNS ASK gr###step.net
  • DNS ASK ta###black.net
  • DNS ASK ta###grown.net
  • DNS ASK gl###lack.net
  • DNS ASK ma###tand.net
  • DNS ASK se####beragain.net
  • DNS ASK ha###ass.net
  • DNS ASK ha###gain.net
  • DNS ASK fr###stand.net
  • DNS ASK of###stand.net
  • DNS ASK se####berpass.net
  • DNS ASK se####berstand.net
  • DNS ASK jo###gain.net
  • DNS ASK ha###tand.net
  • DNS ASK ha###ugar.net
  • DNS ASK se####bersugar.net
  • DNS ASK go#####everytime.com
  • DNS ASK sp###stand.net
  • DNS ASK ja###uter.com
  • DNS ASK do####club-grup.com
  • DNS ASK el#####arimagine.com
  • DNS ASK fr###again.net
  • DNS ASK fr###sugar.net
  • DNS ASK of###sugar.net
  • DNS ASK of###pass.net
  • DNS ASK of###again.net
  • DNS ASK fr###pass.net
  • DNS ASK ro###tand.net
  • DNS ASK wr###again.net
  • DNS ASK de###tand.net
  • DNS ASK de###ugar.net
  • DNS ASK ro###ugar.net
  • DNS ASK ma###gain.net
  • DNS ASK ma###ugar.net
  • DNS ASK wr###stand.net
  • DNS ASK wr###sugar.net
  • DNS ASK wr###pass.net
  • DNS ASK ma###ass.net
  • DNS ASK jo###ugar.net
  • DNS ASK wi###ugar.net
  • DNS ASK wi###ass.net
  • DNS ASK wi###gain.net
  • DNS ASK jo###ass.net
  • DNS ASK jo###tand.net
  • DNS ASK de###ass.net
  • DNS ASK ro###ass.net
  • DNS ASK ro###gain.net
  • DNS ASK wi###tand.net
  • DNS ASK de###gain.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.
  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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  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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