What is Win32/Bifrose.ADR infection?

In this short article you will locate concerning the meaning of Win32/Bifrose.ADR as well as its adverse impact on your computer. Such ransomware are a form of malware that is specified by online frauds to require paying the ransom by a target.

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Most of the instances, Win32/Bifrose.ADR virus will instruct its targets to initiate funds move for the function of neutralizing the amendments that the Trojan infection has presented to the target’s device.

Win32/Bifrose.ADR Summary

These alterations can be as adheres to:

  • Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
  • Creates RWX memory. There is a security trick with memory regions that allows an attacker to fill a buffer with a shellcode and then execute it. Filling a buffer with shellcode isn’t a big deal, it’s just data. The problem arises when the attacker is able to control the instruction pointer (EIP), usually by corrupting a function’s stack frame using a stack-based buffer overflow, and then changing the flow of execution by assigning this pointer to the address of the shellcode.
  • Possible date expiration check, exits too soon after checking local time;
  • 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.

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files situated on the target’s disk drive — so the victim can no more make use of the information;
  • Preventing routine access to the target’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.


The most common networks where Win32/Bifrose.ADR are infused are:

  • By ways of phishing e-mails;
  • As a consequence of user ending up on a resource that holds a destructive software program;

As quickly as the Trojan is effectively infused, it will either cipher the information on the target’s computer or prevent the tool from working in a correct manner – while additionally placing a ransom note that states the need for the victims to effect the repayment for the purpose of decrypting the files or bring back the data system back to the preliminary problem. In many circumstances, the ransom money note will turn up when the client restarts the COMPUTER after the system has actually currently been damaged.

Win32/Bifrose.ADR circulation networks.

In different edges of the world, Win32/Bifrose.ADR grows by leaps as well as bounds. Nonetheless, the ransom notes and methods of extorting the ransom quantity may differ relying on particular neighborhood (local) settings. The ransom notes and also tricks of obtaining the ransom money quantity might vary depending on certain regional (regional) setups.

Ransomware injection

As an example:

    Faulty signals regarding unlicensed software.

    In particular areas, the Trojans usually wrongfully report having actually detected some unlicensed applications enabled on the victim’s tool. The alert after that demands the customer to pay the ransom.

    Faulty declarations about illegal content.

    In countries where software application piracy is much less popular, this technique is not as reliable for the cyber scams. Additionally, the Win32/Bifrose.ADR popup alert might wrongly assert to be deriving from a police institution and also will certainly report having located youngster porn or other prohibited information on the tool.

    Win32/Bifrose.ADR popup alert may incorrectly assert to be deriving from a regulation enforcement organization as well as will report having located kid pornography or various other illegal data on the device. The alert will similarly include a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: 695C3F70
md5: 1176ebc7d20864f6b14b7bb67b31f827
name: 1176EBC7D20864F6B14B7BB67B31F827.mlw
sha1: 7e9964e42913cb2b6621e0194519a7935360184e
sha256: a57ddb255fc5421360def944750ddf89170f3099639a6575f66c34a456c18add
sha512: 7d7b6eb2e142b3f4317e5fd1a987d47fbfb67f08f08552431e6b6ef075cc9d04e83a9be03899e641ab67e37e7a162c37f330cc00857f567724ca90bf012d97b8
ssdeep: 6144:zzqlKLR/xhP3eUdej7KxBDblw65isjgwhGYGy+GS/Avv:3qlKV/xhPuIXxBHlt9j4YGFYvv
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Bifrose.ADR also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetectVM.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.Crypt.BH
CAT-QuickHeal Backdoor.Bifrose.7730
McAfee BackDoor-CEP.gen
Cylance Unsafe
Zillya Backdoor.Bifrose.Win32.41900
CrowdStrike win/malicious_confidence_80% (D)
BitDefender Trojan.Crypt.BH
K7GW Trojan ( 000158851 )
K7AntiVirus Trojan ( 000158851 )
BitDefenderTheta AI:Packer.69810CED1F
Cyren W32/Backdoor.HNRS-5187
Symantec Trojan Horse
ESET-NOD32 Win32/Bifrose.ADR
APEX Malicious
ClamAV Win.Trojan.Agent-36385
Kaspersky Backdoor.Win32.Bifrose.bgn
Alibaba Backdoor:Win32/Bifrose.9414154f
NANO-Antivirus Trojan.Win32.Agent.cojafi
ViRobot Backdoor.Win32.Bifrose.10240
AegisLab Trojan.Win32.Agent.liux
Ad-Aware Trojan.Crypt.BH
TACHYON Backdoor/W32.Bifrose.272563
Emsisoft Trojan.Crypt.BH (B)
Comodo Backdoor.Win32.Bifrose.ADR@3xn7
F-Secure Backdoor:W32/Bifrose.gen!A
DrWeb BackDoor.Bifrost.779
VIPRE Trojan.Win32.Bifrose (v)
McAfee-GW-Edition BehavesLike.Win32.VirRansom.dc
Sophos ML/PE-A + Mal/Bifrose-R
Ikarus Trojan.Win32.Midgare
Jiangmin Backdoor/Bifrose.ks
MaxSecure Poly.Trojan.Agent.BCN
Avira BDS/Bifrose.zwz
Antiy-AVL Trojan[Backdoor]/Win32.Bifrose
Kingsoft Win32.Hack.Bifrose.b.(kcloud)
Microsoft Backdoor:Win32/Bifrose
Arcabit Trojan.Crypt.BH
SUPERAntiSpyware Trojan.Agent/Gen-Bifrose
AhnLab-V3 Trojan/Win32.Bifrose.R1454
ZoneAlarm Backdoor.Win32.Bifrose.bgn
GData Trojan.Crypt.BH
Cynet Malicious (score: 100)
TotalDefense Win32/Bifrost!generic
Acronis suspicious
VBA32 Backdoor.Bifrose
ALYac Trojan.Crypt.BH
MAX malware (ai score=82)
Malwarebytes Backdoor.Bifrose
Panda Bck/Bifrose.BHL
Zoner Trojan.Win32.22108
TrendMicro-HouseCall BKDR_BIFROSE.MIC
Rising Backdoor.Bifrose!1.A05C (CLASSIC)
Yandex Trojan.GenAsa!HgSSZWe0hGI
SentinelOne Static AI – Malicious PE
eGambit Unsafe.AI_Score_99%
Fortinet W32/Bifrose.BBT!tr
AVG Win32:Lazarus [Trj]
Cybereason malicious.7d2086
Avast Win32:Lazarus [Trj]
Qihoo-360 Win32/Backdoor.78a

How to remove Win32/Bifrose.ADR virus?

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

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft2.

Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

Run the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-fix.exe file to install GridinSoft Anti-Malware on your system.

Run Setup.exe

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

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 will automatically start scanning your system for Win32/Bifrose.ADR files and other malicious programs. This process can take a 20-30 minutes, so I suggest you periodically check on the status of the scan process.

GridinSoft Anti-Malware Scanning

Click on “Clean Now”.

When the scan has finished, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

GridinSoft Anti-Malware will scan and clean your PC for free in the trial period. The free version offer real-time protection for first 2 days. If you want to be fully protected at all times – I can recommended you to purchase a full version:

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

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About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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