What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is Ransom.Jigsaw infection?

In this article you will certainly find regarding the meaning of Ransom.Jigsaw as well as its adverse influence on your computer. Such ransomware are a form of malware that is elaborated by on-line fraudulences to demand paying the ransom money by a victim.

GridinSoft Anti-Malware Review
It is better to prevent, than repair and repent!
When we talk about the intrusion of unfamiliar programs into your computer’s work, the proverb “Forewarned is forearmed” describes the situation as accurately as possible. Gridinsoft Anti-Malware is exactly the tool that is always useful to have in your armory: fast, efficient, up-to-date. It is appropriate to use it as an emergency help at the slightest suspicion of infection.
Gridinsoft Anti-Malware 6-day trial available.
EULA | Privacy Policy | 10% Off Coupon
Subscribe to our Telegram channel to be the first to know about news and our exclusive materials on information security.

Most of the cases, Ransom.Jigsaw virus will certainly instruct its victims to launch funds move for the purpose of reducing the effects of the changes that the Trojan infection has actually presented to the victim’s gadget.

Ransom.Jigsaw Summary

These modifications 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.
  • 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.
  • 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;
  • Writes a potential ransom message to disk;
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Creates a copy of itself;
  • Appends a known Locked ransomware file extension to files that have been encrypted;
  • Ciphering the files found on the victim’s hard disk — so the target can no more utilize the information;
  • 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.


One of the most regular channels through which Ransom.Jigsaw Trojans are infused are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As a repercussion of customer winding up on a resource that organizes a destructive software application;

As soon as the Trojan is efficiently infused, it will certainly either cipher the data on the target’s computer or stop the tool from operating in an appropriate fashion – while additionally putting a ransom note that mentions the need for the sufferers to impact the settlement for the purpose of decrypting the documents or recovering the data system back to the first problem. In most circumstances, the ransom money note will show up when the customer reboots the PC after the system has actually already been damaged.

Ransom.Jigsaw distribution channels.

In numerous corners of the world, Ransom.Jigsaw expands by leaps and bounds. However, the ransom notes and also tricks of extorting the ransom money amount might differ relying on particular local (regional) settings. The ransom notes and methods of extorting the ransom quantity might differ depending on particular local (local) setups.

Ransomware injection

As an example:

    Faulty notifies about unlicensed software program.

    In particular areas, the Trojans often wrongfully report having identified some unlicensed applications allowed on the sufferer’s device. The alert then requires the customer to pay the ransom.

    Faulty declarations about illegal content.

    In countries where software application piracy is less preferred, this approach is not as reliable for the cyber scams. Alternatively, the Ransom.Jigsaw popup alert might falsely assert to be deriving from a law enforcement organization as well as will report having situated kid pornography or other illegal information on the device.

    Ransom.Jigsaw popup alert might incorrectly assert to be acquiring from a law enforcement institution and will certainly report having located child pornography or other prohibited information on the device. The alert will in a similar way contain a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: ADA3BAFC
md5: 37ba0c68fc88b6d74bb6b4c5e01a81c7
name: 37BA0C68FC88B6D74BB6B4C5E01A81C7.mlw
sha1: 7bd1d8f36322f68af42f256c79050251cda1170d
sha256: 52bce5d0ecd9ef4e31b2e3a17901cdf55061d12592e3ed7aacb35101c95ec0a8
sha512: 2f554037084f6ed212bb87032e5c9cf3e9335341b7f58ade1866eeaa07cd0373f720717eeea5cad43e6fa1a9c1357b01de8af7d0f9cd2d8fb3e8ed75c2d01775
ssdeep: 3072:aqWTXMzvHzuLhORdyY+WRMtvdiJ4efywjEbcNVcN4WWEE6gClHl2ZZUYxYID6xY:WxCdyYYhdOpykKSKHIZZVxYgaYERT
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright 1999-2012 adobe and flash developers. All rights reserved.
Assembly Version:
InternalName: AlbCry.exe
ProductName: AlbCry 2.0
FileDescription: AlbCry
OriginalFilename: AlbCry.exe

Ransom.Jigsaw also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
MicroWorld-eScan DeepScan:Generic.MSIL.Ransomware.Jigsaw.8037B053
FireEye Generic.mg.37ba0c68fc88b6d7
ALYac Trojan.Ransom.Jigsaw
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 005750061 )
BitDefender DeepScan:Generic.MSIL.Ransomware.Jigsaw.8037B053
K7GW Trojan ( 005750061 )
Cybereason malicious.8fc88b
BitDefenderTheta Gen:NN.ZemsilF.34590.qq0@aqIym6c
Cyren W32/Ransom.BRSN-3513
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast Win32:Trojan-gen
Kaspersky HEUR:Trojan-Ransom.MSIL.Lobzik.gen
Alibaba Ransom:MSIL/JigsawLocker.190a66ea
NANO-Antivirus Trojan.Win32.Ransom.ijuorb
Ad-Aware DeepScan:Generic.MSIL.Ransomware.Jigsaw.8037B053
Sophos Mal/Generic-S
F-Secure Trojan.TR/Jigsaw.igtnk
Zillya Trojan.Lobzik.Win32.18
TrendMicro Ransom_JigsawLocker.R067C0DLK20
McAfee-GW-Edition RDN/Ransom
Emsisoft DeepScan:Generic.MSIL.Ransomware.Jigsaw.8037B053 (B)
SentinelOne Static AI – Malicious PE
Avira TR/Jigsaw.igtnk
MAX malware (ai score=100)
Microsoft Ransom:MSIL/JigsawLocker.A
Gridinsoft Ransom.Win32.Ransom.sa
Arcabit DeepScan:Generic.MSIL.Ransomware.Jigsaw.8037B053
ZoneAlarm HEUR:Trojan-Ransom.MSIL.Lobzik.gen
GData DeepScan:Generic.MSIL.Ransomware.Jigsaw.8037B053
Cynet Malicious (score: 100)
AhnLab-V3 Malware/Win32.RL_Generic.C4263072
McAfee RDN/Ransom
Malwarebytes Ransom.Jigsaw
Panda Trj/GdSda.A
ESET-NOD32 a variant of MSIL/Filecoder.Jigsaw.J
TrendMicro-HouseCall Ransom_JigsawLocker.R067C0DLK20
Yandex Trojan.Filecoder!3GPktLo42nw
Ikarus Trojan-Ransom.JigSaw
MaxSecure Trojan.Malware.73742964.susgen
Fortinet MSIL/Filecoder_Jigsaw.J!tr
AVG Win32:Trojan-gen
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (W)
Qihoo-360 Win32/Ransom.Generic.HgIASOYA

How to remove Ransom.Jigsaw 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 Ransom.Jigsaw 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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Ransom.Jigsaw you can always ask me in the comments for getting help.

User Review
0 (0 votes)
Comments Rating 0 (0 reviews)


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

About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

Leave a Reply