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Trojan.DownLoader12.30518
Added to the Dr.Web virus database:
2015-02-23
Virus description added:
2015-02-23
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '*ManagrMediaMicro' = '"%ALLUSERSPROFILE%\ManagrMediaMicro\conhost.exe"'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mmc.exe] 'Debugger' = 'wuauclt.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Firewall.cpl] 'Debugger' = 'wuauclt.exe'
Changes the following executable system files:
<SYSTEM32>\mmc.exe.b3FwmE
<SYSTEM32>\Firewall.cpl.37rB3
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile] 'EnableFirewall' = '00000000'
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile] 'DoNotAllowExceptions' = '00000000'
To complicate detection of its presence in the operating system,
forces the system hide from view:
Executes the following:
'<SYSTEM32>\netsh.exe' firewall set opmode mode=disable profile=all
'<SYSTEM32>\sc.exe' config SharedAccess start= disabled
Modifies file system :
Creates the following files:
<SYSTEM32>\firewall.cpl:Zone.Identifier
<SYSTEM32>\mmc.exe:Zone.Identifier
%ALLUSERSPROFILE%\ManagrMediaMicro\vmwareuser.exe
%APPDATA%\Uninstall.exe
%APPDATA%\build.exe
%APPDATA%\~uTorrentPartFile_7BFD3A9ED.dat
%TEMP%\nsz2.tmp\potholes.dll
Sets the 'hidden' attribute to the following files:
%ALLUSERSPROFILE%\ManagrMediaMicro\vmwareuser.exe
Deletes the following files:
<SYSTEM32>\ukgCmKlgYoSxQs
<SYSTEM32>\nSxCTqcJsIHqsvZpvnmcOE
%TEMP%\nsz2.tmp\potholes.dll
Moves the following system files:
from <SYSTEM32>\EdAcHEBcgYAcxcfnif to <SYSTEM32>\ZiqLWeqIBVjZZHHOtY
from <SYSTEM32>\mmc.exe.b3FwmE to <SYSTEM32>\EdAcHEBcgYAcxcfnif
from <SYSTEM32>\YJpiozPLtqhoibUnu to <SYSTEM32>\XxHhJgNXOciATswY
from <SYSTEM32>\ZiqLWeqIBVjZZHHOtY to <SYSTEM32>\YJpiozPLtqhoibUnu
from <SYSTEM32>\SIoPhNChsjrnhlVrzanJ to <SYSTEM32>\VZCrMHbNaCDpzgSluPBsm
from <SYSTEM32>\EqqXmkPwtVLdZlQJrGh to <SYSTEM32>\SIoPhNChsjrnhlVrzanJ
from <SYSTEM32>\mmc.exe to <SYSTEM32>\mmc.exe.b3FwmE
from <SYSTEM32>\VZCrMHbNaCDpzgSluPBsm to <SYSTEM32>\nSxCTqcJsIHqsvZpvnmcOE
from <SYSTEM32>\XxHhJgNXOciATswY to <SYSTEM32>\eKHClRHaaEWxpR
from <SYSTEM32>\AGcGacCRoMFxJkmWX to <SYSTEM32>\IhYYoegpKHEhXr
from <SYSTEM32>\KnAPREzQuHtxqwrH to <SYSTEM32>\AGcGacCRoMFxJkmWX
from <SYSTEM32>\GjcgVLmHxDyeVm to <SYSTEM32>\ukgCmKlgYoSxQs
from <SYSTEM32>\IhYYoegpKHEhXr to <SYSTEM32>\GjcgVLmHxDyeVm
from <SYSTEM32>\evLKdvSOAKpJgcnkW to <SYSTEM32>\izzFpMyFRUEYJbb{n
from <SYSTEM32>\eKHClRHaaEWxpR to <SYSTEM32>\evLKdvSOAKpJgcnkW
from <SYSTEM32>\rRkVUCswQMDjDuLh to <SYSTEM32>\KnAPREzQuHtxqwrH
from <SYSTEM32>\izzFpMyFRUEYJbb{n to <SYSTEM32>\rRkVUCswQMDjDuLh
from <SYSTEM32>\SSGEZWNiqFKGnkLINOcFH to <SYSTEM32>\BaXNAFeJOOuNfdkkasjT
from <SYSTEM32>\NpRYIRmrCjOcOPNMct to <SYSTEM32>\SSGEZWNiqFKGnkLINOcFH
from <SYSTEM32>\lpQzxcdhqLftwaPtOOCbe to <SYSTEM32>\AfYMxscz[pZTQDsdKUA
from <SYSTEM32>\BaXNAFeJOOuNfdkkasjT to <SYSTEM32>\lpQzxcdhqLftwaPtOOCbe
from <SYSTEM32>\Firewall.cpl.37rB3 to <SYSTEM32>\IyVnaXhTaLEenJTKYOG
from <SYSTEM32>\firewall.cpl to <SYSTEM32>\Firewall.cpl.37rB3
from <SYSTEM32>\iifuGjJveETCjqnGlzSIBQ to <SYSTEM32>\NpRYIRmrCjOcOPNMct
from <SYSTEM32>\IyVnaXhTaLEenJTKYOG to <SYSTEM32>\iifuGjJveETCjqnGlzSIBQ
from <SYSTEM32>\AfYMxscz[pZTQDsdKUA to <SYSTEM32>\SaXGNGIgjQvgjjRCZsa
from <SYSTEM32>\MCEblejITkoGAIMLeVuW to <SYSTEM32>\zzxLPOfcCsoyJpyJum
from <SYSTEM32>\ynkOwVjRBTMMxwEtzGXTe to <SYSTEM32>\MCEblejITkoGAIMLeVuW
from <SYSTEM32>\cMHSAoCJzTiEorzDxmWC to <SYSTEM32>\EqqXmkPwtVLdZlQJrGh
from <SYSTEM32>\zzxLPOfcCsoyJpyJum to <SYSTEM32>\cMHSAoCJzTiEorzDxmWC
from <SYSTEM32>\eXRAYDrfdqrYvwDLPKZQXM to <SYSTEM32>\jNvivxmZVtZyyRHrzgA
from <SYSTEM32>\SaXGNGIgjQvgjjRCZsa to <SYSTEM32>\eXRAYDrfdqrYvwDLPKZQXM
from <SYSTEM32>\NVJAcGqXlYUeBKTwhzKMyW to <SYSTEM32>\ynkOwVjRBTMMxwEtzGXTe
from <SYSTEM32>\jNvivxmZVtZyyRHrzgA to <SYSTEM32>\NVJAcGqXlYUeBKTwhzKMyW
Moves itself:
from <Full path to virus> to %ALLUSERSPROFILE%\ManagrMediaMicro\conhost.exe
Network activity:
Connects to:
TCP:
HTTP POST requests:
si###odkeys.pw/keys/page.php
UDP:
Miscellaneous:
Searches for the following windows:
ClassName: 'Shell_TrayWnd' WindowName: ''
Curing recommendations
Windows
macOS
Linux
Android
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.
Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.
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.
Find out more about Dr.Web for Android
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