Trojan.Win32.WHISPERGATE.YXCAX

January 24, 2022
 Analysis by: Maria Emreen Viray
 ALIASES:

DoS:Win32/WhisperGate.M (MICROSOFT)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It executes then deletes itself afterward.

  TECHNICAL DETAILS

File Size:

25,088 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

24 Jan 2022

Payload:

Deletes files

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

This malware arrives via the following means:

Installation

This Trojan adds the following processes:

  • cmd.exe /min /C ping 111.111.111.111 -n 5 -w 10 > Nul & Del /f /q {Malware path and name}

It executes then deletes itself afterward.

Other Details

This Trojan does the following:

  • It replaces the extension of overwritten files with the following:
    • .{random characters}
  • It wipes files in fixed and remote drives.
  • It wipes the files with the following extensions:
    • .HTML
    • .HTM
    • .SHTML
    • .XHTML
    • .PHTML
    • .PHP
    • .JSP
    • .ASP
    • .PHPS
    • .PHP5
    • .ASPX
    • .PHP4
    • .PHP6
    • .PHP7
    • .PHP3
    • .DOC
    • .DOCX
    • .XLS
    • .XLSX
    • .PPT
    • .PPTX
    • .PST
    • .OST
    • .MSG
    • .EML
    • .VSD
    • .VSDX
    • .TXT
    • .CSV
    • .RTF
    • .WKS
    • .WK1
    • .PDF
    • .DWG
    • .ONETOC2
    • .SNT
    • .JPEG
    • .JPG
    • .DOCB
    • .DOCM
    • .DOT
    • .DOTM
    • .DOTX
    • .XLSM
    • .XLSB
    • .XLW
    • .XLT
    • .XLM
    • .XLC
    • .XLTX
    • .XLTM
    • .PPTM
    • .POT
    • .PPS
    • .PPSM
    • .PPSX
    • .PPAM
    • .POTX
    • .POTM
    • .EDB
    • .HWP
    • .602
    • .SXI
    • .STI
    • .SLDX
    • .SLDM
    • .BMP
    • .PNG
    • .GIF
    • .RAW
    • .CGM
    • .SLN
    • .TIF
    • .TIFF
    • .NEF
    • .PSD
    • .AI
    • .SVG
    • .CLASS
    • .JAR
    • .BRD
    • .SCH
    • .DCH
    • .DIP
    • .PL
    • .VB
    • .VBS
    • .PS1
    • .BAT
    • .CMD
    • .JS
    • .ASM
    • .PAS
    • .CPP
    • .C
    • .CS
    • .SUO
    • .ASC
    • .LAY6
    • .LAY
    • .MML
    • .SXM
    • .OTG
    • .ODG
    • .UOP
    • .STD
    • .SXD
    • .OTP
    • .ODP
    • .WB2
    • .SLK
    • .DIF
    • .STC
    • .SXC
    • .OTS
    • .ODS
    • .3DM
    • .MAX
    • .3DS
    • .UOT
    • .STW
    • .SXW
    • .OTT
    • .ODT
    • .PEM
    • .P12
    • .CSR
    • .CRT
    • .KEY
    • .PFX
    • .DER
    • .OGG
    • .RB
    • .GO
    • .JAVA
    • .INC
    • .WAR
    • .PY
    • .KDBX
    • .INI
    • .YML
    • .PPK
    • .LOG
    • .VDI
    • .VMDK
    • .VHD
    • .HDD
    • .NVRAM
    • .VMSD
    • .VMSN
    • .VMSS
    • .VMTM
    • .VMX
    • .VMXF
    • .VSWP
    • .VMTX
    • .VMEM
    • .MDF
    • .IBD
    • .MYI
    • .MYD
    • .FRM
    • .SAV
    • .ODB
    • .DBF
    • .DB
    • .MDB
    • .ACCDB
    • .SQL
    • .SQLITEDB
    • .SQLITE3
    • .LDF
    • .SQ3
    • .ARC
    • .PAQ
    • .BZ2
    • .TBK
    • .BAK
    • .TAR
    • .TGZ
    • .GZ
    • .7Z
    • .RAR
    • .ZIP
    • .BACKUP
    • .ISO
    • .VCD
    • .BZ
    • .CONFIG

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

17.336.08

FIRST VSAPI PATTERN DATE:

24 Jan 2022

VSAPI OPR PATTERN File:

17.337.00

VSAPI OPR PATTERN Date:

25 Jan 2022

Step 1

Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.

Step 2

Scan your computer with your Trend Micro product to clean files detected as Trojan.Win32.WHISPERGATE.YXCAX. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check the following Trend Micro Support pages for more information:

NOTES:

Step 3:

Restore wiped files using backup data.


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