MSIL:JigSaw-A [Trj]

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

What is MSIL:JigSaw-A [Trj] infection?

In this post you will certainly find concerning the interpretation of MSIL:JigSaw-A [Trj] and its adverse effect on your computer system. Such ransomware are a kind of malware that is elaborated by online fraudulences to require paying the ransom money by a sufferer.

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In the majority of the cases, MSIL:JigSaw-A [Trj] ransomware will advise its targets to initiate funds move for the function of reducing the effects of the amendments that the Trojan infection has actually introduced to the target’s device.

MSIL:JigSaw-A [Trj] Summary

These modifications can be as follows:

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents situated on the sufferer’s hard disk drive — so the target can no more make use of the data;
  • Preventing normal 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.

MSIL:JigSaw-A [Trj]

The most regular networks where MSIL:JigSaw-A [Trj] are injected are:

  • By methods of phishing emails;
  • As a consequence of individual winding up on a source that hosts a malicious software;

As quickly as the Trojan is effectively infused, it will either cipher the data on the victim’s computer or protect against the device from operating in a correct manner – while likewise putting a ransom money note that discusses the need for the targets to effect the repayment for the function of decrypting the records or restoring the documents system back to the preliminary problem. In many circumstances, the ransom note will certainly show up when the customer restarts the PC after the system has already been damaged.

MSIL:JigSaw-A [Trj] distribution channels.

In different corners of the globe, MSIL:JigSaw-A [Trj] grows by jumps as well as bounds. Nonetheless, the ransom money notes as well as methods of obtaining the ransom amount may vary depending upon specific neighborhood (local) setups. The ransom money notes and techniques of obtaining the ransom quantity might differ depending on specific local (local) settings.

Ransomware injection

As an example:

    Faulty informs concerning unlicensed software.

    In particular locations, the Trojans frequently wrongfully report having identified some unlicensed applications enabled on the sufferer’s tool. The alert then requires the individual to pay the ransom.

    Faulty statements regarding illegal content.

    In countries where software piracy is much less popular, this approach is not as reliable for the cyber scams. Additionally, the MSIL:JigSaw-A [Trj] popup alert may incorrectly assert to be originating from a police institution and will certainly report having located youngster porn or other prohibited information on the gadget.

    MSIL:JigSaw-A [Trj] popup alert might falsely claim to be deriving from a law enforcement institution as well as will certainly report having situated child porn or other unlawful data on the device. The alert will likewise contain a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: 2D952276
md5: 9a317dee3903cb67d919258b8fc14b41
name: 9A317DEE3903CB67D919258B8FC14B41.mlw
sha1: e71ac22fa3975f23c07e9e0bcd563be9478b9bf3
sha256: 0e125c4a6f127e6f1c7da07f820ea04daccb54c50cdb1583c6d177b2ec7e8a06
sha512: 94449367d2311c8cee65c457eb218d66f2bd30e42afa32d79a10976422ad14fd0de3ce484cad2d059df2c49bfc9f74cbe4e5a5cf7480ea3157cb9d9aecb6fcc0
ssdeep: 12288:0y90kh/fWs20YdLzB6O+3E2Lln1QNBSRAET:0y8s208Lf+dh1QTET
type: PE32+ executable (GUI) x86-64, for MS Windows

Version Info:

LegalCopyright: xa9 Microsoft Corporation. All rights reserved.
InternalName: Wextract
FileVersion: 11.00.10240.16384 (th1.150709-1700)
CompanyName: Microsoft Corporation
ProductName: Internet Explorer
ProductVersion: 11.00.10240.16384
FileDescription: Win32 Cabinet Self-Extractor
OriginalFilename: WEXTRACT.EXE .MUI
Translation: 0x0409 0x04b0

MSIL:JigSaw-A [Trj] also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 700000121 )
Elastic malicious (high confidence)
DrWeb Trojan.MulDrop7.14732
Cynet Malicious (score: 99)
CAT-QuickHeal Ransom.JigsawLocker.A3
ALYac Trojan.Ransom.Jigsaw
Cylance Unsafe
Zillya Trojan.GenericKD.Win32.31410
Sangfor Ransom.MSIL.JigsawLocker.A
CrowdStrike win/malicious_confidence_60% (D)
Alibaba Ransom:MSIL/JigsawLocker.9691469c
K7GW Trojan ( 700000121 )
Cybereason malicious.e3903c
Cyren W32/Jigsaw.A1.gen!Eldorado
Symantec Trojan.Gen.2
ESET-NOD32 a variant of MSIL/Filecoder.Jigsaw.B
Avast MSIL:JigSaw-A [Trj]
ClamAV Win.Ransomware.Jigsaw-5900122-0
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.GenericKD.4229236
NANO-Antivirus Trojan.Win32.Ransom.ektrvd
MicroWorld-eScan Trojan.GenericKD.4229236
Tencent Win32.Trojan.Generic.Htlp
Ad-Aware Trojan.GenericKD.4229236
Sophos Mal/Generic-S
Comodo Malware@#28kzci8rztb28
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom.MSIL.JIGSAW.SM
McAfee-GW-Edition BehavesLike.Win64.Dropper.hc
FireEye Generic.mg.9a317dee3903cb67
Emsisoft Trojan.GenericKD.4229236 (B)
SentinelOne Static AI – Malicious SFX
Avira HEUR/AGEN.1126343
eGambit Unsafe.AI_Score_100%
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Ransom:MSIL/JigsawLocker.A
AegisLab Trojan.Win32.Generic.4!c
GData MSIL.Trojan-Ransom.Jigsaw.F
AhnLab-V3 Trojan/Win32.Generic.C1792854
McAfee Artemis!9A317DEE3903
MAX malware (ai score=100)
Malwarebytes Ransom.Jigsaw
Panda Trj/CI.A
TrendMicro-HouseCall Ransom.MSIL.JIGSAW.SM
Rising Ransom.JigsawLocker!8.52DD (CLOUD)
Yandex Trojan.Agent!DyQiNJak9gU
Ikarus Trojan-Ransom.JigSaw
Fortinet W32/Generic.B!tr
AVG MSIL:JigSaw-A [Trj]
Paloalto generic.ml
Qihoo-360 Win64/Ransom.Generic.H8oAjCgA

How to remove MSIL:JigSaw-A [Trj] virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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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 MSIL:JigSaw-A [Trj] 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 MSIL:JigSaw-A [Trj] 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/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.

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