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アンチウイルスに関する誤解と噂

アンチウイルスに関する誤解

ニュース

Trojan.Siggen18.62648

Added to the Dr.Web virus database: 2022-10-22

Virus description added: 2022-10-24

Technical Information

Malicious functions

Executes the following

'%WINDIR%\syswow64\taskkill.exe' /im <File name>.exe /f

Reads files which store third party applications passwords

%APPDATA%\opera software\opera stable\login data
%LOCALAPPDATA%\google\chrome\user data\default\cookies
%LOCALAPPDATA%\google\chrome\user data\default\login data
%LOCALAPPDATA%\google\chrome\user data\default\web data

Searches for windows to

detect analytical utilities:

ClassName: 'OLLYDBG', WindowName: ''
ClassName: 'GBDYLLO', WindowName: ''
ClassName: 'pediy06', WindowName: ''
ClassName: 'RegmonClass', WindowName: ''
ClassName: 'FilemonClass', WindowName: ''
ClassName: '', WindowName: 'File Monitor - Sysinternals: www.sysinternals.com'
ClassName: 'PROCMON_WINDOW_CLASS', WindowName: ''
ClassName: '', WindowName: 'Process Monitor - Sysinternals: www.sysinternals.com'

Modifies file system

Creates the following files

%ALLUSERSPROFILE%\vcruntime140.dll
%ALLUSERSPROFILE%\67387672314671935712561902-shm
%ALLUSERSPROFILE%\67387672314671935712561902
%ALLUSERSPROFILE%\57098054239105097153494408-shm
%ALLUSERSPROFILE%\57098054239105097153494408
%ALLUSERSPROFILE%\57286074065960844827539876
%ALLUSERSPROFILE%\22713932922421170618545656
%ALLUSERSPROFILE%\12451214847955242049258253
%ALLUSERSPROFILE%\25614735816814078427971562
%ALLUSERSPROFILE%\01161695662377392280180559
%ALLUSERSPROFILE%\57486964701994882528591234
%ALLUSERSPROFILE%\25823627641679014190036930
%ALLUSERSPROFILE%\01350495598132351961215917
%ALLUSERSPROFILE%\04151588562535237991741823
%ALLUSERSPROFILE%\53415146265651829625746790
%ALLUSERSPROFILE%\43043528192083979856679296
%ALLUSERSPROFILE%\56224239160042705334192525
%ALLUSERSPROFILE%\32751007017505042218381694
%ALLUSERSPROFILE%\15038133312325393785189962-shm
%ALLUSERSPROFILE%\15038133312325393785189962
%ALLUSERSPROFILE%\91565922269888839559175051
%ALLUSERSPROFILE%\60001685119734062249810965-shm
%ALLUSERSPROFILE%\60001685119734062249810965
%ALLUSERSPROFILE%\freebl3.dll
%ALLUSERSPROFILE%\mozglue.dll
%ALLUSERSPROFILE%\msvcp140.dll
%ALLUSERSPROFILE%\nss3.dll
%ALLUSERSPROFILE%\softokn3.dll
%ALLUSERSPROFILE%\05304941546265166259030129
%ALLUSERSPROFILE%\91123430577393642981216691

Deletes the following files

%ALLUSERSPROFILE%\60001685119734062249810965-shm
%ALLUSERSPROFILE%\67387672314671935712561902
%ALLUSERSPROFILE%\67387672314671935712561902-shm
%ALLUSERSPROFILE%\57098054239105097153494408
%ALLUSERSPROFILE%\57098054239105097153494408-shm
%ALLUSERSPROFILE%\57286074065960844827539876
%ALLUSERSPROFILE%\22713932922421170618545656
%ALLUSERSPROFILE%\12451214847955242049258253
%ALLUSERSPROFILE%\25614735816814078427971562
%ALLUSERSPROFILE%\01161695662377392280180559
%ALLUSERSPROFILE%\57486964701994882528591234
%ALLUSERSPROFILE%\25823627641679014190036930
%ALLUSERSPROFILE%\01350495598132351961215917
%ALLUSERSPROFILE%\04151588562535237991741823
%ALLUSERSPROFILE%\53415146265651829625746790
%ALLUSERSPROFILE%\43043528192083979856679296
%ALLUSERSPROFILE%\56224239160042705334192525
%ALLUSERSPROFILE%\32751007017505042218381694
%ALLUSERSPROFILE%\15038133312325393785189962
%ALLUSERSPROFILE%\15038133312325393785189962-shm
%ALLUSERSPROFILE%\91565922269888839559175051
%ALLUSERSPROFILE%\60001685119734062249810965
%ALLUSERSPROFILE%\05304941546265166259030129
%ALLUSERSPROFILE%\91123430577393642981216691

Deletes itself.

Network activity

Connects to

't.#e':443
'ma#.to':443
'microsoft.com':80
'x1.#.lencr.org':80
'x2.#.lencr.org':80
'e1.#.lencr.org':80
'11#.#03.10.3':80

TCP

HTTP GET requests

http://www.microsoft.com/pki/certs/MicRooCerAut_2010-06-23.crt
http://x1.#.lencr.org/
http://x2.#.lencr.org/
http://e1.#.lencr.org/MFMwUTBPME0wSzAJBgUrDgMCGgUABBTvkAFw3ViPKmUeIVEf3NC7b1ErqwQUWvPtK%2Fw2wjd5uVIw6lRvz1XLLqwCEgP%2FYshz6UM%2FTOdxX%2BNnFT%2B1XQ%3D%3D
http://11#.#03.10.3/5327467664.zip
http://11#.#03.10.3/1561

Other

't.#e':443
'ma#.to':443

UDP

DNS ASK t.#e
DNS ASK ma#.to
DNS ASK microsoft.com
DNS ASK x1.#.lencr.org
DNS ASK x2.#.lencr.org
DNS ASK e1.#.lencr.org

Miscellaneous

Searches for the following windows

ClassName: 'Registry Monitor - Sysinternals: www.sysinternals.com' WindowName: ''
ClassName: '18467-41' WindowName: ''
ClassName: '' WindowName: ''

Creates and executes the following

'%WINDIR%\syswow64\cmd.exe' k/c taskkill /im <File name>.exe /f & timeout /t 6 & del /f /q "<Full path to file>" & del C:\PrograData\*.dll & exit' (with hidden window)

Executes the following

'%WINDIR%\syswow64\cmd.exe' k/c taskkill /im <File name>.exe /f & timeout /t 6 & del /f /q "<Full path to file>" & del C:\PrograData\*.dll & exit
'%WINDIR%\syswow64\timeout.exe' /t 6

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.

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Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.

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Download by serial number

Download on App Store

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

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.

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