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Trojan.Hottrend.531

Added to the Dr.Web virus database: 2016-05-15

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\Control\SecurityProviders] 'SecurityProviders' = 'msapsspc.dll, schannel.dll, digest.dll, msnsspc.dll, mmgeqnnl.dll'
Malicious functions:
Injects code into
the following system processes:
  • <SYSTEM32>\spoolsv.exe
Modifies file system:
Creates the following files:
  • %WINDIR%\㕣塇b䡒㝇ㅌ䈲䐵攀畢橶敨睴浧睩琀愵佯4ㅑ獦䌶䬀㑄煏儀晭䍹n㙨坖佯Xㅎㅑ桧煎P䍃䭷申牷楍一桦牰杮兣O歌眲晔䠸搳权䉣砀桷ㅙ礷戀ㄵ琴戀焷湔桶制㙮H瀳㕪䔷㕅x㘶汥栲ㄳ䝬倀橣㍑洸h吳捅愲爀睒㝩䉖㠀噍潐游牪儀祪摇佭煒灅㘀攸㔸ㅆ潆d㙦䈴扣祐啈祌䤳䰀楦摉坰䐀楶䵮v呄䅅䡋位䝔呕䩗昀䝵瑭e㑩桲啮癒U坹啷佤牕条剷㘀浥海慥啄1
  • <SYSTEM32>\mmgeqnnl.dll
  • %WINDIR%\䉮晰㑐剉散挀䜵托刀䝈䰷㈱㕂D扥癵桪瑥杷業w㕴潡㑏儀昱㙳C䑋伴q浑祦湃栀嘶潗塏一儱朱乨偱䌀睃㍋睵䵲i晎灨湲捧佑䰀㉫呷㡦㍈䍤捧B睸奨㜱y㕢㐱t㝢呱癮㙨湒䠶㌀橰㜵䕅砵㘀收㉬㍨氱G捐兪㠳桭㌀䕔㉣a割楷嘷B䴸偖㡯橮r橑䝹浤剏䕱p㠶㡥䘵䘱摯昀㐶捂偢䡹䱕㍹I晌䥩灤W癄湩癍䐀䕔䭁䵈呏啇坔J畦浇整椀爴湨剕啶礀睗摕問慲睧R收睭敭䑡ㅕ
  • %WINDIR%\䍃䭷申牷楍一桦牰杮兣O歌眲晔䠸搳权䉣砀桷ㅙ礷戀ㄵ琴戀焷湔桶制㙮H瀳㕪䔷㕅x㘶汥栲ㄳ䝬倀橣㍑洸h吳捅愲爀睒㝩䉖㠀噍潐游牪儀祪摇佭煒灅㘀攸㔸ㅆ潆d㙦䈴扣祐啈祌䤳䰀楦摉坰䐀楶䵮v呄䅅䡋位䝔呕䩗昀䝵瑭e㑩桲啮癒U坹啷佤牕条剷㘀浥海慥啄1
  • %WINDIR%\睰䕪挲汴䜀歎䕒瑴㕰昀噢睥業楍畒䩕十礀䅕摷䵗㙘X㑍䑆塶㡗渀灂偦䤴捒e㕣塇b䡒㝇ㅌ䈲䐵攀畢橶敨睴浧睩琀愵佯4ㅑ獦䌶䬀㑄煏儀晭䍹n㙨坖佯Xㅎㅑ桧煎P䍃䭷申牷楍一桦牰杮兣O歌眲晔䠸搳权䉣砀桷ㅙ礷戀ㄵ琴戀焷湔桶制㙮H瀳㕪䔷㕅x㘶汥栲ㄳ䝬倀橣㍑洸h吳捅愲爀睒㝩䉖㠀噍潐游牪儀祪摇佭煒灅㘀攸㔸ㅆ潆d㙦䈴扣祐啈祌䤳䰀楦摉坰䐀楶䵮v呄䅅䡋位䝔呕䩗昀䝵瑭e㑩桲啮癒U坹啷佤牕条剷㘀浥海慥啄...
Network activity:
Connects to:
  • 'ma##.#otmail.com':25
  • 'pr##x3.biz':8000
  • 'ma##.gmail.com':25
  • '67.##5.160.76':25
UDP:
  • DNS ASK ya##o.com
  • DNS ASK ho##ail.com
  • DNS ASK pr##x3.biz
  • DNS ASK gm##l.com

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