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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.Encoder.37743

Added to the Dr.Web virus database: 2023-07-22

Virus description added: 2024-03-29

Technical Information

Malicious functions

Terminates or attempts to terminate

the following user processes:

firefox.exe

Reads files which store third party applications passwords

%HOMEPATH%\desktop\1189.jpeg
%HOMEPATH%\desktop\sdszfo.docx
%HOMEPATH%\desktop\parnas_01.jpeg
%HOMEPATH%\desktop\ituneshelpunavailable.html
%HOMEPATH%\desktop\iisstart.html
%HOMEPATH%\desktop\iisstart.htm
%HOMEPATH%\desktop\holycrosschurchinstructions.docx
%HOMEPATH%\desktop\default.bmp
%HOMEPATH%\desktop\dashborder_192.bmp
%HOMEPATH%\desktop\cveuropeo.doc
%HOMEPATH%\desktop\contosoroot.cer
%HOMEPATH%\desktop\contoso.cer
%HOMEPATH%\desktop\coffee.bmp
%HOMEPATH%\desktop\applicantform_en.doc
%HOMEPATH%\desktop\browse.htm
%HOMEPATH%\desktop\about.htm
%HOMEPATH%\desktop\4f0bf7ff71f28.jpeg
%HOMEPATH%\desktop\2.jpeg
%HOMEPATH%\desktop\pmd.cer
%HOMEPATH%\desktop\tree_view.html

Modifies file system

Creates the following files

%ALLUSERSPROFILE%\$recycle.bin.{645ff040-5081-101b-9f08-00aa002f954e}\fcihmqjt.exe
%ALLUSERSPROFILE%\$recycle.bin.{645ff040-5081-101b-9f08-00aa002f954e}\save.key
z:\$recycle.bin\s-1-5-21-1238866942-1249195528-555854008-1000\desktop.ini

Deletes the following files

%ALLUSERSPROFILE%\$recycle.bin.{645ff040-5081-101b-9f08-00aa002f954e}\fcihmqjt.exe

Modifies the following files

C:\recovery\fc7d0508-3f8d-11ed-bf82-c9aa0b5639b5\boot.sdi
%HOMEPATH%\favorites\msn websites\msn.url
%HOMEPATH%\favorites\msn websites\msn entertainment.url
%HOMEPATH%\favorites\msn websites\msn money.url
%HOMEPATH%\favorites\windows live\windows live mail.url
%HOMEPATH%\favorites\windows live\windows live spaces.url
%HOMEPATH%\favorites\msn websites\msn autos.url
%HOMEPATH%\favorites\microsoft websites\microsoft store.url
%HOMEPATH%\favorites\windows live\get windows live.url
%HOMEPATH%\favorites\windows live\windows live gallery.url
%HOMEPATH%\favorites\microsoft websites\microsoft at work.url
%HOMEPATH%\favorites\microsoft websites\microsoft at home.url
%HOMEPATH%\favorites\microsoft websites\ie site on microsoft.com.url
%HOMEPATH%\favorites\links for united states\gobiernousa.gov.url
%HOMEPATH%\favorites\microsoft websites\ie add-on site.url
%HOMEPATH%\favorites\links for united states\usa.gov.url
%HOMEPATH%\favorites\links\web slice gallery.url
%HOMEPATH%\desktop\coffee.bmp
%HOMEPATH%\desktop\applicantform_en.doc
%HOMEPATH%\desktop\browse.htm
%HOMEPATH%\desktop\about.htm
%HOMEPATH%\contacts\user.contact
%HOMEPATH%\desktop\4f0bf7ff71f28.jpeg
%HOMEPATH%\desktop\2.jpeg
%HOMEPATH%\desktop\1189.jpeg
C:\recovery\fc7d0508-3f8d-11ed-bf82-c9aa0b5639b5\winre.wim
%HOMEPATH%\favorites\msn websites\msn sports.url
%HOMEPATH%\favorites\msn websites\msnbc news.url

Moves itself

from <Full path to file> to <Full path to file>.[4feecf74-985a896b].zip

Modifies user data files (Trojan.Encoder).

Network activity

Connects to

'ip###ger.org':80
'ip###ger.org':443

TCP

HTTP GET requests

http://ip###ger.org/1fxJB4.torrent

Other

'ip###ger.org':443

UDP

DNS ASK ip###ger.org

Miscellaneous

Creates and executes the following

'%ALLUSERSPROFILE%\$recycle.bin.{645ff040-5081-101b-9f08-00aa002f954e}\fcihmqjt.exe'
'%WINDIR%\syswow64\cmd.exe' /c for /l %i in (1,1,1000) do (ping -n 2 localhost & del "%ALLUSERSPROFILE%\$RECYCLE.BIN.{645FF040-5081-101B-9F08-00AA002F954E}\fcihmqjt.exe" & if not exist "%ALLUSERSPROFILE%\$RECYCLE.BIN.{645...' (with hidden window)

Executes the following

'%WINDIR%\syswow64\cmd.exe' /c for /l %i in (1,1,1000) do (ping -n 2 localhost & del "%ALLUSERSPROFILE%\$RECYCLE.BIN.{645FF040-5081-101B-9F08-00AA002F954E}\fcihmqjt.exe" & if not exist "%ALLUSERSPROFILE%\$RECYCLE.BIN.{645...
'%WINDIR%\syswow64\ping.exe' -n 2 localhost

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.

Download Dr.Web

Download by serial number

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

Download Dr.Web

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.

Find out more about Dr.Web for Android

Free trial

14 days

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