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Trojan.DownLoader26.53216
Added to the Dr.Web virus database:
2018-06-23
Virus description added:
2018-06-23
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'PSwitch' = '%ProgramFiles%\Proxy Switcher Standard\ProxySwitcher.exe'
Modifies file system:
Creates the following files:
%TEMP%\aut1.tmp
%APPDATA%\WNR\PSW\psw.lz.bak
%APPDATA%\WNR\PSW\psw.lz.tmp.3044-3048
%ALLUSERSPROFILE%\Application Data\WNR\PSW\44F120ED19413048_44
%ALLUSERSPROFILE%\Application Data\WNR\PSW\44F120ED19413048.tmp.3044-3048
%ProgramFiles%\Proxy Switcher Standard\unins000.dat
%ProgramFiles%\Proxy Switcher Standard\unins000.msg
%ALLUSERSPROFILE%\Start Menu\Programs\Proxy Switcher Standard\Setting Up Mozilla FireFox Tutorial.lnk
%ALLUSERSPROFILE%\Start Menu\Programs\Proxy Switcher Standard\Anonymous Surfing Tutorial.lnk
%ALLUSERSPROFILE%\Start Menu\Programs\Proxy Switcher Standard\Uninstall ProxySwitcher Standard.lnk
%ALLUSERSPROFILE%\Start Menu\Programs\Proxy Switcher Standard\ProxySwitcher Standard Help.lnk
%ALLUSERSPROFILE%\Start Menu\Programs\Proxy Switcher Standard\Readme.lnk
%ALLUSERSPROFILE%\Start Menu\Programs\Proxy Switcher Standard\License.lnk
%ALLUSERSPROFILE%\Start Menu\Programs\Proxy Switcher Standard\Support\ProxySwitcher Standard (Safe mode).lnk
%ProgramFiles%\Proxy Switcher Standard\ProxySwitcher.exe
%ALLUSERSPROFILE%\Start Menu\Programs\Proxy Switcher Standard\ProxySwitcher Standard.lnk
%ProgramFiles%\Proxy Switcher Standard\is-O4J08.tmp
%ProgramFiles%\Proxy Switcher Standard\is-6BVO5.tmp
%ProgramFiles%\Proxy Switcher Standard\is-IFDMP.tmp
%ProgramFiles%\Proxy Switcher Standard\is-IRM9P.tmp
%ProgramFiles%\Proxy Switcher Standard\is-PG0HD.tmp
%ProgramFiles%\Proxy Switcher Standard\is-R1586.tmp
%ProgramFiles%\Proxy Switcher Standard\is-6NUND.tmp
%ProgramFiles%\Proxy Switcher Standard\is-AKC83.tmp
%ProgramFiles%\Proxy Switcher Standard\is-3MHJ9.tmp
%ProgramFiles%\Proxy Switcher Standard\is-GCDOC.tmp
%TEMP%\is-4UKKR.tmp\_isetup\_shfoldr.dll
%TEMP%\is-OQBO4.tmp\~hukmrlz.tmp
%CommonProgramFiles%\~hukmrlz.tmp
%ALLUSERSPROFILE%\Start Menu\Programs\Proxy Switcher Standard\Upgrade ProxySwitcher Standard Anytime....lnk
%HOMEPATH%\Desktop\ProxySwitcher Standard.lnk
Sets the 'hidden' attribute to the following files:
%CommonProgramFiles%\~hukmrlz.tmp
Deletes the following files:
%TEMP%\aut1.tmp
%TEMP%\is-4UKKR.tmp\_isetup\_shfoldr.dll
%TEMP%\is-OQBO4.tmp\~hukmrlz.tmp
Moves the following files:
from %ProgramFiles%\Proxy Switcher Standard\is-GCDOC.tmp to %ProgramFiles%\Proxy Switcher Standard\unins000.exe
from %ProgramFiles%\Proxy Switcher Standard\is-3MHJ9.tmp to %ProgramFiles%\Proxy Switcher Standard\ProxySwitcher.exe
from %ProgramFiles%\Proxy Switcher Standard\is-AKC83.tmp to %ProgramFiles%\Proxy Switcher Standard\uPCRE.dll
from %ProgramFiles%\Proxy Switcher Standard\is-6NUND.tmp to %ProgramFiles%\Proxy Switcher Standard\STLHash.dll
from %ProgramFiles%\Proxy Switcher Standard\is-R1586.tmp to %ProgramFiles%\Proxy Switcher Standard\uSSL.dll
from %ProgramFiles%\Proxy Switcher Standard\is-PG0HD.tmp to %ProgramFiles%\Proxy Switcher Standard\ReadMe.txt
from %ProgramFiles%\Proxy Switcher Standard\is-IRM9P.tmp to %ProgramFiles%\Proxy Switcher Standard\License.rtf
from %ProgramFiles%\Proxy Switcher Standard\is-IFDMP.tmp to %ProgramFiles%\Proxy Switcher Standard\psw.chm
from %ProgramFiles%\Proxy Switcher Standard\is-6BVO5.tmp to %ProgramFiles%\Proxy Switcher Standard\AnSurf.exe
from %ProgramFiles%\Proxy Switcher Standard\is-O4J08.tmp to %ProgramFiles%\Proxy Switcher Standard\FireFox.exe
from %ALLUSERSPROFILE%\Application Data\WNR\PSW\44F120ED19413048.tmp.3044-3048 to %ALLUSERSPROFILE%\Application Data\WNR\PSW\44F120ED19413048
from %APPDATA%\WNR\PSW\psw.lz.tmp.3044-3048 to %APPDATA%\WNR\PSW\psw.lz
Substitutes the following files:
%ALLUSERSPROFILE%\Application Data\WNR\PSW\44F120ED19413048.tmp.3044-3048
%ALLUSERSPROFILE%\Application Data\WNR\PSW\44F120ED19413048
%APPDATA%\WNR\PSW\psw.lz.tmp.3044-3048
%APPDATA%\WNR\PSW\psw.lz
Network activity:
Connects to:
TCP:
HTTP GET requests:
http://PR######TCHER.INTERNAL.HOST/ via localhost
Miscellaneous:
Searches for the following windows:
ClassName: 'TTPSWMainForm' WindowName: ''
ClassName: 'TProxyManager' WindowName: ''
Creates and executes the following:
'%CommonProgramFiles%\~hukmrlz.tmp' /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-
'%TEMP%\is-OQBO4.tmp\~hukmrlz.tmp' /SL5="$100E0,5618628,140800,%CommonProgramFiles%\~hukmrlz.tmp" /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-
'%ProgramFiles%\Proxy Switcher Standard\ProxySwitcher.exe' -first -fast -z -x -q
'%ProgramFiles%\Proxy Switcher Standard\ProxySwitcher.exe' -set -x -fast
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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