Ransom.Win32.HIVE.YPEBL
Windows
Threat Type: Ransomware
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
Downloaded from the Internet, Dropped by other malware
This Ransomware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It drops files as ransom note. It avoids encrypting files with the following file extensions.
TECHNICAL DETAILS
642,560 bytes
EXE
No
12 Feb 2024
Disables AV, Drops files, Encrypts files, Terminates processes
Arrival Details
This Ransomware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Installation
This Ransomware drops the following files:
- %Windows%\Logs\WindowsBackup\Wbadmin.0.etl
- {Encrpyted Directory}\Contact Us.txt
- {Drive Letter}\Contact Us.txt
(Note: %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)
It adds the following processes:
- vssadmin.exe delete shadows /all /quiet
- wmic.exe shadowcopy delete
- wbadmin.exe delete systemstatebackup
- wbadmin.exe delete catalog-quiet
- bcdedit.exe /set {default} recoveryenabled No
- bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures
- wbadmin.exe delete systemstatebackup -keepVersions:3
- notepad.exe \?\%System Root%\Contact Us.txt
(Note: %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)
Process Termination
This Ransomware terminates the following services if found on the affected system:
- agntsvc
- backup
- dbeng50
- dbsnmp
- ensvc
- excel
- firefox
- infopath
- memtas
- mepocs
- msaccess
- msmq
- mspub
- mssql
- mysql
- notepad
- ocommte
- ocssd
- onenote
- oracle
- outlook
- powerpnt
- sap
- sql
- steam
- svc$
- synctime
- thebat
- veeam
- visio
- vmm
- vmwp
- vss
- winword
- wordpad
It terminates the following processes if found running in the affected system's memory:
- agntsvc
- backup
- dbeng50
- dbsnmp
- ensvc
- excel
- firefox
- infopath
- isqlplussvc
- memtas
- mepocs
- msaccess
- msexchange
- msmq
- mspub
- mssql
- mydesktopqos
- mydesktopservice
- mysql
- notepad
- ocautoupds
- ocommte
- ocssd
- onenote
- oracle
- outlook
- powerpnt
- sap
- sqbcoreservice
- sql
- steam
- svc$
- synctime
- tbirdconfig
- thebat
- thunderbird
- veeam
- visio
- vmm
- vmp
- vss
- winword
- wordpad
- xfssvcon
Other Details
This Ransomware does the following:
- It encrypts fixed, removable, and network drives.
It accepts the following parameters:
- -c {Username}:{Password}
- --admin {Domain}:{Username} {IP Address}
Ransomware Routine
This Ransomware avoids encrypting files with the following strings in their file name:
- autorun.inf
- bootfont.bin
- boot.ini
- bootsect.bak
- desktop.ini
- iconcache.db
- ntldr
- ntuser.dat
- ntuser.dat.log
- ntuser.ini
- thumbs.db
- Contact Us.txt
It avoids encrypting files found in the following folders:
- perflogs
- appdata
- $windows.~bt
- windows.old
- $windows.~ws
- msocache
- mozilla
- tor browser
- $recycle.bin
- windows
- windows nt
- intel
- all users
- internet explorer
- default boot
- system volume information
- config.msi
It appends the following extension to the file name of the encrypted files:
- .locked
It drops the following file(s) as ransom note:
- {Encrpyted Directory}\Contact Us.txt
- {Drive Letter}\Contact Us.txt
It avoids encrypting files with the following file extensions:
- 386
- adv
- ani
- bat
- bin
- cab
- cmd
- com
- cpl
- cur
- deskthemepack
- diagcab
- diagcfg
- diagpkg
- dll
- drv
- exe
- hlp
- hta
- icl
- icns
- ico
- ics
- idx
- key
- ldf
- lnk
- lock
- mod
- mpa
- msc
- msi
- msp
- msstyles
- msu
- nls
- nomedia
- ocx
- pdb
- prf
- ps1
- rom
- rtp
- scr
- shs
- spl
- sys
- theme
- themepack
- wpx
SOLUTION
9.800
19.158.02
14 Feb 2024
19.159.00
15 Feb 2024
Step 1
Trend Micro Predictive Machine Learning detects and blocks malware at the first sign of its existence, before it executes on your system. When enabled, your Trend Micro product detects this malware under the following machine learning name:
- TROJ.Win32.TRX.XXPE50FFF077
Step 2
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 3
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 4
Search and delete these files
- %Windows%\Logs\WindowsBackup\Wbadmin.0.etl
- {Encrpyted Directory}\Contact Us.txt
- {Drive Letter}\Contact Us.txt
Step 5
Scan your computer with your Trend Micro product to delete files detected as Ransom.Win32.HIVE.YPEBL. 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:
Step 6
Restore encrypted files from backup.
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