Ransom:Win32/Bitman

What is Ransom:Win32/Bitman infection?

In this article you will certainly locate regarding the definition of Ransom:Win32/Bitman and its negative effect on your computer. Such ransomware are a type of malware that is specified by online fraudulences to demand paying the ransom money by a victim.

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Most of the instances, Ransom:Win32/Bitman virus will advise its sufferers to start funds move for the function of reducing the effects of the changes that the Trojan infection has presented to the victim’s tool.

Ransom:Win32/Bitman Summary

These alterations can be as adheres to:

  • Injection (inter-process);
  • Injection (Process Hollowing);
  • 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.
  • A process attempted to delay the analysis task.;
  • 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;
  • Executed a process and injected code into it, probably while unpacking;
  • Deletes its original binary from disk;
  • Attempts to delete volume shadow copies;
  • 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
  • Exhibits possible ransomware file modification behavior;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the papers found on the victim’s hard disk — so the target can no longer make use of the data;
  • Preventing routine accessibility 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.

Ransom:Win32/Bitman

The most regular channels whereby Ransom:Win32/Bitman are infused are:

  • By methods of phishing emails;
  • As a consequence of customer winding up on a resource that holds a malicious software;

As soon as the Trojan is successfully infused, it will certainly either cipher the data on the victim’s computer or prevent the tool from working in an appropriate way – while also placing a ransom note that mentions the demand for the victims to effect the repayment for the purpose of decrypting the records or recovering the documents system back to the preliminary condition. In a lot of instances, the ransom money note will show up when the client restarts the PC after the system has actually currently been damaged.

Ransom:Win32/Bitman distribution networks.

In numerous corners of the world, Ransom:Win32/Bitman expands by leaps as well as bounds. Nonetheless, the ransom notes and techniques of obtaining the ransom money quantity might vary depending on particular neighborhood (local) settings. The ransom notes and also techniques of obtaining the ransom amount may vary depending on particular regional (regional) setups.

Ransomware injection

As an example:

    Faulty signals regarding unlicensed software.

    In particular areas, the Trojans usually wrongfully report having found some unlicensed applications made it possible for on the sufferer’s gadget. The sharp after that demands the individual to pay the ransom.

    Faulty declarations about unlawful material.

    In countries where software program piracy is less preferred, this approach is not as reliable for the cyber frauds. Alternatively, the Ransom:Win32/Bitman popup alert might incorrectly declare to be deriving from a police establishment and will certainly report having situated youngster pornography or various other illegal information on the gadget.

    Ransom:Win32/Bitman popup alert might incorrectly declare to be deriving from a legislation enforcement institution and will certainly report having situated youngster porn or other unlawful data on the device. The alert will likewise include a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: 6DAF1D0C
md5: a1f20664aafd7025824a72c337a5527b
name: A1F20664AAFD7025824A72C337A5527B.mlw
sha1: 92b7f118146525e02e6fb45a1b62af3b74ed534f
sha256: 9234c9b73eecc2f34485fdbd84c094a211be1510d0d53b37f766cc9aca8aeeea
sha512: 24020a6385eb207c4c216d182787d4bcbc15a81c48a5307fc523d57cd1854f3b9ac4fccb4b36e22b34c678a84d36b45452c82a225d85d17b3e7785c05b682ec7
ssdeep: 6144:FG92fGGvMbSsMbBPNxVUM5mKRgZY9FYV7PcP8whc:492RdPBUM5mK2ZY9CV7PcUIc
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Ransom:Win32/Bitman also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 004df5701 )
Elastic malicious (high confidence)
Cynet Malicious (score: 100)
ALYac Trojan.Generic.22178307
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_90% (W)
Alibaba Ransom:Win32/Bitman.13da5f91
K7GW Trojan ( 004df5701 )
Cybereason malicious.4aafd7
Cyren W32/Heuristic-162!Eldorado
ESET-NOD32 Win32/Filecoder.TeslaCrypt.A
APEX Malicious
Avast Win32:GenMalicious-LGB [Trj]
ClamAV Win.Trojan.Zusy-9760504-0
Kaspersky Trojan-Ransom.Win32.Bitman.e
BitDefender Trojan.Generic.22178307
NANO-Antivirus Trojan.Win32.Bitman.escgku
MicroWorld-eScan Trojan.Generic.22178307
Tencent Win32.Trojan.Raas.Auto
Ad-Aware Trojan.Generic.22178307
Sophos Mal/Generic-R + Mal/FakeAV-BW
F-Secure Trojan.TR/Crypt.XPACK.Gen2
DrWeb Trojan.PWS.Siggen1.30255
VIPRE Trojan.Win32.TeslaCrypt.a (v)
McAfee-GW-Edition BehavesLike.Win32.Generic.dc
FireEye Generic.mg.a1f20664aafd7025
Emsisoft Trojan.Generic.22178307 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Backdoor/Androm.fmj
Avira TR/Crypt.XPACK.Gen2
Antiy-AVL Trojan[Ransom]/Win32.Blocker
Microsoft Ransom:Win32/Bitman
Arcabit Trojan.Generic.D1526A03
AegisLab Hacktool.Win32.Morphine.l2Rj
ZoneAlarm Trojan-Ransom.Win32.Bitman.e
GData Trojan.Generic.22178307
Acronis suspicious
McAfee Artemis!A1F20664AAFD
VBA32 TScope.Malware-Cryptor.SB
Malwarebytes Malware.AI.4253867257
Panda Trj/CI.A
Rising Ransom.Tescrypt!8.3AF (CLOUD)
Yandex Trojan.Bitman!rOZ9pkQH8Uc
Ikarus Trojan-Ransom.TeslaCrypt
Fortinet W32/FileEncry.DCAA!tr
AVG Win32:GenMalicious-LGB [Trj]
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Bitman.HxMB8a8A

How to remove Ransom:Win32/Bitman 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

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 Ransom:Win32/Bitman 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 Ransom:Win32/Bitman you can always ask me in the comments for getting help.

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References

  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. More information about GridinSoft products: https://gridinsoft.com/products/

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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