BackDoor.DarkNess.47
| Added to Dr.Web virus database: | 2011-10-12 |
| Virus description was added: | 2012-01-04 |
Technical Information
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%WINDIR%\Debug\cosp86.exe' = '%WINDIR%\Debug\cosp86.exe:*:Enabled:KL'
Creates and executes the following:
- %WINDIR%\Debug\cosp86.exe /start
Executes the following:
- <SYSTEM32>\sc.exe delete 169953
Searches for registry branches where third party applications store passwords:
- [<HKCU>\SOFTWARE\FlashFXP\3]
- [<HKLM>\SOFTWARE\FlashFXP\3]
Modifies file system :
Creates the following files:
- %WINDIR%\Debug\cosp86.exe
- %WINDIR%\Debug\bc
Sets the 'hidden' attribute to the following files:
- %WINDIR%\Debug\cosp86.exe
Deletes the following files:
- %WINDIR%\Debug\bc
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.
- If your OS is locked by malware belonging to the Trojan.Winlock family, use our unlocking service. If you failed to find the unlock code, follow the instructions provided in Section 2.
| Free trial | Download Dr.Web |
|---|---|
| One month (no registration) or three months (registration and renewal discount) | Download by serial number |
Use Dr.Web Anti-virus for OS X to run a full scan of your Mac.
| Free trial | Download Dr.Web | Download on App Store |
|---|---|---|
| One month (no registration) or three months (registration and renewal discount) | Download by serial number |
After booting up, run a full scan of all disk partitions with Dr.Web Anti-virus for Linux.
| Free trial | Download Dr.Web |
|---|---|
| One month (no registration) or three months (registration and renewal discount) | 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.
Free trial
14 days
| Download now | Get it on Google Play | Download by QR Code |
|---|
![[Blog Dr.Web]](http://st.drweb.com/static/new-www/social/drweb.png)
![[You Tube]](http://st.drweb.com/static/new-www/social/youtube.png)
![[Twitter]](http://st.drweb.com/static/new-www/social/twitter.png)
![[Facebook]](http://st.drweb.com/static/new-www/social/facebook.png)
![[Instagram]](http://st.drweb.com/static/new-www/social/instagram.png)
![[Spiceworks]](http://st.drweb.com/static/new-www/social/spiceworks.png)
