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Trojan.DownLoader25.21780
Added to the Dr.Web virus database:
2017-08-15
Virus description added:
2017-08-15
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Microsoft Viewer Monitor Manager' = '<LS_APPDATA>\Microsoft Windows\taskhost.exe'
Malicious functions:
Creates and executes the following:
'<LS_APPDATA>\Microsoft Windows\keygen.exe'
'<LS_APPDATA>\Microsoft Windows\taskhost.exe'
'%TEMP%\is-QRMH1.tmp\<File name>.tmp' /SL5="$30092,407748,57344,<Full path to file>"
'%TEMP%\is-IE6F9.tmp\<File name>.tmp' /SL5="$50036,407748,57344,<Full path to file>" /VERYSILENT /NORESTARTAPPLICATIONS /NOFORCECLOSEAPPLICATIONS /NOCLOSEAPPLICATIONS
Searches for windows to
detect analytical utilities:
ClassName: 'PROCMON_WINDOW_CLASS', WindowName: ''
ClassName: '', WindowName: 'Process Monitor - Sysinternals: www.sysinternals.com'
ClassName: 'FileMonClass', WindowName: ''
ClassName: 'OLLYDBG', WindowName: ''
ClassName: 'TIdaWindow', WindowName: ''
Modifies file system:
Creates the following files:
<LS_APPDATA>\Microsoft Windows\is-SHVC9.tmp
<LS_APPDATA>\Microsoft Windows\is-0ILLQ.tmp
<LS_APPDATA>\Microsoft Windows\is-L5JRD.tmp
%TEMP%\is-QRMH1.tmp\<File name>.tmp
%TEMP%\is-IE6F9.tmp\<File name>.tmp
Deletes the following files:
%TEMP%\is-IE6F9.tmp\<File name>.tmp
%TEMP%\is-QRMH1.tmp\<File name>.tmp
%TEMP%\Test.dat
Moves the following files:
from <LS_APPDATA>\Microsoft Windows\is-0ILLQ.tmp to <LS_APPDATA>\Microsoft Windows\keygen.exe
from <LS_APPDATA>\Microsoft Windows\is-SHVC9.tmp to <LS_APPDATA>\Microsoft Windows\taskhost.exe.config
from <LS_APPDATA>\Microsoft Windows\is-L5JRD.tmp to <LS_APPDATA>\Microsoft Windows\taskhost.exe
Substitutes the following files:
Network activity:
Connects to:
'18#.#5.48.68':80
'pa###bin.com':80
'20#.#6.232.182':443
'wp#d':80
'ms#####.#ranus.feralhosting.com':80
'ms#####.##taeus.feralhosting.com':80
TCP:
HTTP GET requests:
http://pa###bin.com/raw/Vf81BwHn
http://pa###bin.com/raw/Z3mcNqjz
http://pa###bin.com/raw/HNkipzLK
http://pa###bin.com/raw/qdwMGvDS
http://18#.#5.48.68/02ed55faea5d1d2b1490e78da30da107/z124.zip
http://ms#####.##taeus.feralhosting.com/z124.zip
http://pa###bin.com/raw/u66uXYRh
http://ms#####.#ranus.feralhosting.com/z124.zip
http://ms#####.#ranus.feralhosting.com/217eb54cfc0fe64e8a5d802042506b443
http://ms#####.##taeus.feralhosting.com/6e628c7bd6d34dc3c2a8ae7d0e5a9b
http://11#.#11.111.1/wpad.dat via wp#d
http://ms#####.#ranus.feralhosting.com/68fead277b52bdd8f1ca21cddcd3299
http://18#.#5.48.68/02ed55faea5d1d2b1490e78da30da107/fc324f595608bf3e9809c401917f9a6900977
http://pa###bin.com/raw/h5yBCwpY
http://ms#####.##taeus.feralhosting.com/c3cb5860f0dbf08b28efd5ab25ea95472e
http://18#.#5.48.68/02ed55faea5d1d2b1490e78da30da107/5fc741325308c0e741e9509ed5d
UDP:
DNS ASK pa###bin.com
DNS ASK do#####d.microsoft.com
DNS ASK ms#####.##taeus.feralhosting.com
DNS ASK wp#d
DNS ASK ms#####.#ranus.feralhosting.com
Miscellaneous:
Searches for the following windows:
ClassName: '' WindowName: 'Import REConstructor v1.6 FINAL (C) 2001-2003 MackT/uCF'
ClassName: '' WindowName: 'Import REConstructor v1.6.1 FIXED FINAL (C) 2001-2003 MackT/uCF / 2006'
ClassName: '' WindowName: 'RL!dePacker - Generic Unpacker'
ClassName: '' WindowName: 'CDW\s PECompact 2.64/2.78a/2.79 (beta) Unpacker'
ClassName: '' WindowName: '[PeCompact 2.x Unpacker]'
ClassName: '' WindowName: ' Import REConstructor V1.6 Final MackT/uCF -- >> UnREal-RCE << --'
ClassName: '' WindowName: 'RE-Pair 0.6: IDP not '
ClassName: '' WindowName: 'RE-Pair 0.6: IDP not ixed.'
ClassName: '' WindowName: 'RE-Pair 0.6: IDP ixed.'
ClassName: '' WindowName: 'CHimpREC - ReCon Edition - (C) 2008 TiGa'
ClassName: '' WindowName: 'RE-Pair 0.6: IDP '
ClassName: '' WindowName: 'CDW'
ClassName: 'WinDbgFrameClass' WindowName: ''
ClassName: 'IdaView' WindowName: ''
ClassName: 'MYDEBUG' WindowName: ''
ClassName: 'Shell_TrayWnd' WindowName: ''
ClassName: 'ID' WindowName: ''
ClassName: '18467-41' WindowName: ''
ClassName: '' WindowName: 'PhantOm - [Professional Edition]'
ClassName: '' WindowName: 'QuickUnpack 2.2'
ClassName: '' WindowName: 'POISONяBлХ - [Professional Edition]'
ClassName: '' WindowName: 'Rock Debugger - [Disassembly]'
ClassName: '' WindowName: 'POISON?B?? - [Professional Edition]'
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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