Win32:Mutex-A [Trj]

What is Win32:Mutex-A [Trj] infection?

In this post you will certainly find regarding the interpretation of Win32:Mutex-A [Trj] and its unfavorable impact on your computer system. Such ransomware are a kind of malware that is specified by on-line scams to require paying the ransom by a target.

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In the majority of the situations, Win32:Mutex-A [Trj] infection will advise its victims to start funds move for the objective of reducing the effects of the amendments that the Trojan infection has presented to the victim’s gadget.

Win32:Mutex-A [Trj] Summary

These alterations can be as follows:

  • 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.

  • Unconventionial language used in binary resources: Russian;
  • Collects information to fingerprint the system. There are behavioral human characteristics that can be used to digitally identify a person to grant access to systems, devices, or data. Unlike passwords and verification codes, fingerprints are fundamental parts of user’s identities. Among the threats blocked on biometric data processing and storage systems is spyware, the malware used in phishing attacks (mostly spyware downloaders and droppers), ransomware, and Banking Trojans as posing the greatest danger.
  • Ciphering the records found on the target’s hard disk drive — so the victim can no longer use the data;
  • Preventing normal accessibility to the victim’s workstation;

Win32:Mutex-A [Trj]

The most normal networks whereby Win32:Mutex-A [Trj] are injected are:

  • By methods of phishing emails;
  • As an effect of individual ending up on a source that holds a malicious software application;

As soon as the Trojan is successfully injected, it will either cipher the data on the target’s computer or avoid the gadget from functioning in a correct way – while additionally putting a ransom money note that states the requirement for the targets to effect the repayment for the function of decrypting the documents or restoring the documents system back to the first condition. In most instances, the ransom money note will certainly turn up when the customer reboots the COMPUTER after the system has actually currently been damaged.

Win32:Mutex-A [Trj] distribution channels.

In various edges of the globe, Win32:Mutex-A [Trj] grows by leaps and bounds. However, the ransom money notes and also techniques of extorting the ransom quantity might vary relying on particular local (regional) settings. The ransom money notes as well as methods of obtaining the ransom quantity may differ depending on particular local (regional) settings.

Ransomware injection

For example:

    Faulty alerts concerning unlicensed software application.

    In specific locations, the Trojans typically wrongfully report having actually spotted some unlicensed applications allowed on the victim’s gadget. The sharp after that requires the customer to pay the ransom.

    Faulty statements concerning illegal content.

    In nations where software piracy is much less prominent, this technique is not as reliable for the cyber frauds. Conversely, the Win32:Mutex-A [Trj] popup alert might wrongly assert to be originating from a police establishment and also will certainly report having situated child pornography or other illegal data on the device.

    Win32:Mutex-A [Trj] popup alert may falsely assert to be acquiring from a law enforcement establishment and also will certainly report having located youngster pornography or other illegal information on the gadget. The alert will likewise contain a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: AFD3A712
md5: 14f61f64b243a913a719a75aa94a098a
name: 14F61F64B243A913A719A75AA94A098A.mlw
sha1: e3d8eb36ba9850553f03f3421052b831eb240c9e
sha256: 630320f1a41f99cd1e2adfd01b95d9030f6e009daf60d54819869d82bbab91ea
sha512: 539c6419dc2aa3f5c4200e79d7bf1ac89c3ef2d376c9d1308de170fa090fda079a4f3980667ba9ee725642e735f0b28c7498a6ead63fa0b1d53f1de65147f2ae
ssdeep: 6144:0ZkG0gXwzAOgvn9VIx+MieVBEoFpAGWga5sTtMS3/8BGK:0BvXAwnLIdBEokKKCtxUB5
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32:Mutex-A [Trj] also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.FamVT.RazyNHmC.Trojan
K7AntiVirus Trojan ( 004dca351 )
Elastic malicious (high confidence)
DrWeb Trojan.MulDrop6.21383
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Crowti.WR7
ALYac Trojan.Lethic.L
Cylance Unsafe
Zillya Adware.OutBrowse.Win32.95285
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
K7GW Trojan ( 004dca351 )
Cybereason malicious.4b243a
Baidu Win32.Trojan.Kryptik.vz
Cyren W32/Agent.XL.gen!Eldorado
Symantec Ransom.TeslaCrypt!g2
ESET-NOD32 Win32/Spy.Zbot.ACB
APEX Malicious
Avast Win32:Mutex-A [Trj]
Kaspersky Trojan-Spy.Win32.Zbot.wied
BitDefender Trojan.Lethic.L
NANO-Antivirus Trojan.Win32.Drop.dzwbmc
SUPERAntiSpyware Trojan.Agent/Gen-Ransom
MicroWorld-eScan Trojan.Lethic.L
Tencent Trojan.Win32.Kryptik.ekxx
Ad-Aware Trojan.Lethic.L
Sophos ML/PE-A + Mal/Wonton-BZ
Comodo TrojWare.Win32.Yakes.ELS@68047n
F-Secure Trojan.TR/Crypt.ZPACK.183124
BitDefenderTheta Gen:NN.ZexaF.34628.vyX@a0Rg8KVk
VIPRE Trojan.Win32.Generic!BT
TrendMicro WORM_HPKASIDET.SM1
McAfee-GW-Edition BackDoor-FDAL!14F61F64B243
FireEye Generic.mg.14f61f64b243a913
Emsisoft Trojan.Lethic.L (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Bublik.apk
Avira TR/Crypt.ZPACK.183124
eGambit Unsafe.AI_Score_91%
Microsoft Trojan:Win32/Glupteba!ml
ZoneAlarm Trojan-Spy.Win32.Zbot.wied
GData Trojan.Lethic.L
AhnLab-V3 Trojan/Win32.Teslacrypt.C1318830
Acronis suspicious
McAfee BackDoor-FDAL!14F61F64B243
MAX malware (ai score=85)
VBA32 TrojanSpy.Zbot
Panda Trj/GdSda.A
TrendMicro-HouseCall WORM_HPKASIDET.SM1
Rising Trojan.Spy.Win32.Zbot.hwu (RDMK:cmRtazoY4fNgNHd4bp/Ocxvk202c)
Ikarus Trojan-Ransom.TeslaCrypt
Fortinet W32/Kryptik.EMAN!tr
AVG Win32:Mutex-A [Trj]
Qihoo-360 HEUR/QVM10.1.0297.Malware.Gen

How to remove Win32:Mutex-A [Trj] ransomware?

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.

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Press “Install” button.

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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:Mutex-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 Win32:Mutex-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/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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