Backdoor:Win32/Bifrose.BH

What is Backdoor:Win32/Bifrose.BH infection?

In this article you will find concerning the interpretation of Backdoor:Win32/Bifrose.BH and also its adverse impact on your computer system. Such ransomware are a form of malware that is specified by on the internet fraudulences to require paying the ransom money by a target.

In the majority of the situations, Backdoor:Win32/Bifrose.BH ransomware will certainly advise its sufferers to start funds transfer for the purpose of reducing the effects of the amendments that the Trojan infection has actually introduced to the target’s device.

Backdoor:Win32/Bifrose.BH Summary

These adjustments can be as complies with:

  • Attempts to connect to a dead IP:Port (1 unique times);
  • Possible date expiration check, exits too soon after checking local time;
  • Starts servers listening on 0.0.0.0:666;
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • A process created a hidden window;
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses Windows utilities for basic functionality;
  • Sniffs keystrokes;
  • Checks for the presence of known windows from debuggers and forensic tools;
  • Installs itself for autorun at Windows startup. There is simple tactic using the Windows startup folder located at:
    C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup. Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

    The registry run keys perform the same action, and can be located in different locations:

    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Likely virus infection of existing system binary;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files situated on the victim’s hard disk — so the sufferer can no more make use of the data;
  • Preventing routine accessibility to the victim’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.
Similar behavior
Related domains
web.icq.com BehavesLike.Win32.VirRansom.mc

Backdoor:Win32/Bifrose.BH

One of the most common networks where Backdoor:Win32/Bifrose.BH Ransomware Trojans are injected are:

  • By ways of phishing e-mails;
  • As an effect of customer winding up on a resource that hosts a destructive software;

As quickly as the Trojan is efficiently infused, it will certainly either cipher the information on the target’s PC or protect against the device from working in a proper fashion – while also positioning a ransom money note that points out the requirement for the victims to effect the payment for the purpose of decrypting the documents or bring back the data system back to the preliminary condition. In a lot of instances, the ransom note will come up when the customer restarts the PC after the system has already been damaged.

Backdoor:Win32/Bifrose.BH distribution networks.

In various corners of the globe, Backdoor:Win32/Bifrose.BH grows by leaps and bounds. Nonetheless, the ransom notes and also methods of extorting the ransom amount might vary relying on specific neighborhood (local) settings. The ransom notes and also methods of obtaining the ransom amount might differ depending on certain regional (local) setups.

Ransomware injection

For instance:

    Faulty notifies regarding unlicensed software application.

    In certain areas, the Trojans commonly wrongfully report having discovered some unlicensed applications allowed on the sufferer’s device. The alert after that requires the customer to pay the ransom money.

    Faulty declarations about prohibited material.

    In countries where software application piracy is much less prominent, this method is not as effective for the cyber fraudulences. Additionally, the Backdoor:Win32/Bifrose.BH popup alert might falsely assert to be originating from a police organization as well as will certainly report having located youngster pornography or other prohibited information on the device.

    Backdoor:Win32/Bifrose.BH popup alert may falsely declare to be acquiring from a legislation enforcement organization and will report having situated kid porn or various other prohibited information on the tool. The alert will likewise consist of a need for the individual to pay the ransom.

Technical details

File Info:

crc32: D481EED1md5: 40cfb6a56b34b66841b1fc24990bf8d0name: 40CFB6A56B34B66841B1FC24990BF8D0.mlwsha1: eea1ad96443a58d8ce69b0cf48f6615b3fee6090sha256: a2d32bc8f81ef5ad6f5dfb2d442efcaa8e280549d8f31bb0d04ef0444d50c0a3sha512: b93513a24cf9fab2a06656ea6196acbb1f0f390baaa80d43892ed821fd7ba609560823a04dc61bff54986c35f6cff622698d9e390047a9caa0e7f09477032411ssdeep: 1536:x/k/EdxikMK0QVrPtRGh7w/5j4TWGM+/AFNh5VX+oa+L:x/FdX0QVrt45wxjuWU/In5VuJ+Ltype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Backdoor:Win32/Bifrose.BH also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
Elastic malicious (high confidence)
DrWeb Trojan.MulDrop.444
Cynet Malicious (score: 100)
CMC Generic.Win32.40cfb6a56b!MD
CAT-QuickHeal Trojan.Generic
ALYac Dropped:Backdoor.Generic.192434
Cylance Unsafe
Zillya Dropper.Joiner.Win32.187
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_80% (D)
Alibaba TrojanDropper:Win32/Joiner.b97a287c
Cybereason malicious.56b34b
Cyren W32/Backdoor.FDZM-6980
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/TrojanDropper.Small.O
APEX Malicious
Avast Win32:AlLight [Trj]
ClamAV Win.Trojan.BeastDoor-1
Kaspersky Trojan-Dropper.Win32.Joiner.bk
BitDefender Dropped:Backdoor.Generic.192434
NANO-Antivirus Trojan.Win32.Joiner.bwvewu
MicroWorld-eScan Dropped:Backdoor.Generic.192434
Tencent Win32.Trojan-dropper.Joiner.Pcjf
Ad-Aware Dropped:Backdoor.Generic.192434
Sophos Mal/Generic-R + Troj/Mdrop-CH
Comodo TrojWare.Win32.TrojanDropper.Joiner.K@12v2f7
BitDefenderTheta AI:Packer.C9B420B923
TrendMicro BKDR_BIFROSE.ES
McAfee-GW-Edition BehavesLike.Win32.VirRansom.mc
FireEye Generic.mg.40cfb6a56b34b668
Emsisoft Dropped:Backdoor.Generic.192434 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Backdoor/Bifrose.bfh
Webroot W32.Bifrose.Gen
Avira BDS/BeastDoor.192.A
eGambit Unsafe.AI_Score_100%
Antiy-AVL Trojan/Generic.ASMalwS.E8C6C8
Kingsoft Win32.Troj.Joiner.bk.(kcloud)
Microsoft Backdoor:Win32/Bifrose.BH
Arcabit Backdoor.Generic.D2EFB2
AegisLab Trojan.Win32.Joiner.b!c
ZoneAlarm Trojan-Dropper.Win32.Joiner.bk
GData Dropped:Backdoor.Generic.192434
AhnLab-V3 Trojan/Win32.Bifrose.C311
McAfee MultiDropper-CE
MAX malware (ai score=100)
VBA32 BScope.TrojanDropper.Small
Malwarebytes Malware.AI.3258268543
Panda Bck/Bifrose.AV
TrendMicro-HouseCall BKDR_BIFROSE.ES
Rising Dropper.Freeline (CLOUD)
Yandex Trojan.GenAsa!VXDlq/l/x1Q
Ikarus Backdoor.Win32.Bifrose
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Mdrop.CH!tr
AVG Win32:AlLight [Trj]
Paloalto generic.ml

How to remove Backdoor:Win32/Bifrose.BH ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft1

Run the setup file.

Run Setup.exe
GridinSoft Anti-Malware Setup

Press “Install” button.

GridinSoft Anti-Malware Install

Once installed, Anti-Malware will automatically run.

GridinSoft Anti-Malware Splash-Screen

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware Scanning

Click on “Clean Now”.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

Full version of GridinSoft

If the guide doesn’t help you to remove Backdoor:Win32/Bifrose.BH you can always ask me in the comments for getting help.

References

    About the author

    Robert Bailey

    Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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