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Trojan.DownLoader12.27590

Added to the Dr.Web virus database: 2015-02-20

Virus description added:

Technical Information

Malicious functions:
Executes the following:
  • '<SYSTEM32>\taskhost.exe'
  • '%WINDIR%\explorer.exe' /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
  • '%WINDIR%\explorer.exe' /s , "http://www.he##123.net/"
Modifies file system :
Creates the following files:
  • %APPDATA%\Roaming\Microsoft\Windows\Recent\CustomDestinations\TIJFUPBQ57EPKGGZ1NZN.temp
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Extension State\MANIFEST-000001
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\8E58.tmp
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\8BC5.tmp
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\8D1E.tmp
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Extension State\000001.dbtmp
  • %TEMP%\etilqs_JijOcztS25mPAXO
  • %TEMP%\etilqs_bfWMcLU1ckmOBG8
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Extension State\LOG
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Extension State\MANIFEST-000002
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Extension State\000002.dbtmp
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\8A5C.tmp
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Extension Rules\000002.dbtmp
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Extension Rules\LOG
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Extension Rules\MANIFEST-000002
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Extension Rules\MANIFEST-000001
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Extension Rules\000001.dbtmp
  • %TEMP%\etilqs_qpUWwfUOGOHvchN
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\6D75.tmp
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\6E42.tmp
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\6BDE.tmp
  • %APPDATA%\Roaming\Opera Software\Opera Stable\History Provider Cache
  • %APPDATA%\Roaming\Opera Software\Opera Stable\40F5.tmp
Deletes the following files:
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\8C90.tmp~RF88dae.TMP
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\8B95.tmp~RF88c57.TMP
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\8E38.tmp~RF88eb7.TMP
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Extension State\MANIFEST-000001
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Extension State\CURRENT~RF892cc.TMP
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\8A1C.tmp~RF88b1f.TMP
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Extension Rules\MANIFEST-000001
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Extension Rules\CURRENT~RF81b8b.TMP
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\6BAE.tmp~RF86d33.TMP
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\6E22.tmp~RF8896a.TMP
  • %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\6D65.tmp~RF86dfe.TMP
Moves the following files:
  • from %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\8D1E.tmp to %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\8C90.tmp
  • from %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\8C90.tmp to %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\8C90.tmp~RF88dae.TMP
  • from %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\8B95.tmp to %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\8B95.tmp~RF88c57.TMP
  • from %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\8A1C.tmp to %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\8A1C.tmp~RF88b1f.TMP
  • from %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\8BC5.tmp to %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\8B95.tmp
  • from %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\8E58.tmp to %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\8E38.tmp
  • from %APPDATA%\Roaming\Opera Software\Opera Stable\Extension State\000002.dbtmp to %APPDATA%\Roaming\Opera Software\Opera Stable\Extension State\CURRENT
  • from %APPDATA%\Roaming\Opera Software\Opera Stable\Extension State\CURRENT to %APPDATA%\Roaming\Opera Software\Opera Stable\Extension State\CURRENT~RF892cc.TMP
  • from %APPDATA%\Roaming\Opera Software\Opera Stable\Extension State\000001.dbtmp to %APPDATA%\Roaming\Opera Software\Opera Stable\Extension State\CURRENT
  • from %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\8E38.tmp to %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\8E38.tmp~RF88eb7.TMP
  • from %APPDATA%\Roaming\Microsoft\Windows\Recent\CustomDestinations\TIJFUPBQ57EPKGGZ1NZN.temp to %APPDATA%\Roaming\Microsoft\Windows\Recent\CustomDestinations\8548f632abe97aa3.customDestinations-ms
  • from %APPDATA%\Roaming\Opera Software\Opera Stable\40F5.tmp to %APPDATA%\Roaming\Opera Software\Opera Stable\Preferences
  • from %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\6BDE.tmp to %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\6BAE.tmp
  • from %APPDATA%\Roaming\Opera Software\Opera Stable\Extension Rules\CURRENT to %APPDATA%\Roaming\Opera Software\Opera Stable\Extension Rules\CURRENT~RF81b8b.TMP
  • from %APPDATA%\Roaming\Opera Software\Opera Stable\Extension Rules\000001.dbtmp to %APPDATA%\Roaming\Opera Software\Opera Stable\Extension Rules\CURRENT
  • from %APPDATA%\Roaming\Opera Software\Opera Stable\Extension Rules\000002.dbtmp to %APPDATA%\Roaming\Opera Software\Opera Stable\Extension Rules\CURRENT
  • from %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\6BAE.tmp to %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\6BAE.tmp~RF86d33.TMP
  • from %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\6E22.tmp to %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\6E22.tmp~RF8896a.TMP
  • from %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\8A5C.tmp to %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\8A1C.tmp
  • from %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\6E42.tmp to %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\6E22.tmp
  • from %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\6D75.tmp to %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\6D65.tmp
  • from %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\6D65.tmp to %APPDATA%\Roaming\Opera Software\Opera Stable\Jump List Icons\6D65.tmp~RF86dfe.TMP
Network activity:
UDP:
  • DNS ASK bi##.#ikimedia.org
  • DNS ASK i.##0.ru
  • DNS ASK www.go##le.ru
  • DNS ASK sl####i.yandex.ru
  • DNS ASK en.###ipedia.org
  • DNS ASK re###.opera.com
  • DNS ASK ap#.###sys.opera.com
  • DNS ASK dn#.##ftncsi.com
  • DNS ASK www.google.com
  • DNS ASK k.####uogeng.com
  • DNS ASK k.###inming.com
  • DNS ASK www.ic#.com
  • DNS ASK si#####ck2.opera.com
  • DNS ASK www.he##123.net
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Shell_TrayWnd' WindowName: ''
  • ClassName: 'Opera_MessageWindow' WindowName: '%APPDATA%\Roaming\Opera Software\Opera Stable'

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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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