What is Ransom:Win32/Wyhymyz.A infection?

In this article you will locate about the definition of Ransom:Win32/Wyhymyz.A as well as its unfavorable effect on your computer system. Such ransomware are a type of malware that is clarified by online frauds to require paying the ransom by a victim.

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In the majority of the instances, Ransom:Win32/Wyhymyz.A ransomware will instruct its sufferers to start funds move for the objective of neutralizing the changes that the Trojan infection has presented to the victim’s device.

Ransom:Win32/Wyhymyz.A Summary

These adjustments can be as complies with:

  • 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.
  • Presents an Authenticode digital signature;
  • 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.
  • Exhibits possible ransomware file modification behavior;
  • Writes a potential ransom message to disk;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files situated on the sufferer’s hard disk — so the sufferer can no longer utilize the information;
  • Preventing normal accessibility to the sufferer’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 normal networks where Ransom:Win32/Wyhymyz.A Trojans are injected are:

  • By ways of phishing emails;
  • As a repercussion of individual ending up on a source that hosts a destructive software program;

As soon as the Trojan is efficiently injected, it will certainly either cipher the data on the sufferer’s PC or protect against the device from operating in an appropriate way – while additionally putting a ransom money note that discusses the requirement for the targets to effect the settlement for the function of decrypting the files or restoring the documents system back to the preliminary problem. In a lot of instances, the ransom money note will certainly turn up when the customer restarts the COMPUTER after the system has already been harmed.

Ransom:Win32/Wyhymyz.A distribution networks.

In different corners of the world, Ransom:Win32/Wyhymyz.A expands by jumps as well as bounds. Nonetheless, the ransom notes as well as methods of obtaining the ransom money amount might vary relying on certain local (regional) setups. The ransom notes and also techniques of obtaining the ransom money quantity may differ depending on certain neighborhood (regional) setups.

Ransomware injection

As an example:

    Faulty notifies about unlicensed software application.

    In particular areas, the Trojans usually wrongfully report having discovered some unlicensed applications made it possible for on the sufferer’s tool. The alert then requires the individual to pay the ransom.

    Faulty declarations regarding unlawful web content.

    In nations where software piracy is much less preferred, this method is not as reliable for the cyber fraudulences. Conversely, the Ransom:Win32/Wyhymyz.A popup alert might falsely claim to be deriving from a police organization and will report having situated kid pornography or other prohibited information on the device.

    Ransom:Win32/Wyhymyz.A popup alert might incorrectly claim to be deriving from a legislation enforcement institution and will report having located child pornography or other prohibited data on the device. The alert will in a similar way consist of a demand for the user to pay the ransom.

Technical details

File Info:

crc32: EEA2CCCD
md5: a18b85ad895baa1e104d1e9c44129b1e
name: A18B85AD895BAA1E104D1E9C44129B1E.mlw
sha1: 5dea1438b89c5bbbb48f1abf3ca4c2320e5a45b9
sha256: 7d91759517451710e014f66717ee2e88d0b87348a33eb8e8a447850b070c91f3
sha512: cd3c454dba6c0ee742774c5bdb84a08745639fe493a6ceb5d2537d607e0bbc97eece6e8ce0e1717faaaf3a4cf87ebb9f69f4f0c9ff9e366612d80fc786f46bec
ssdeep: 1536:Kh/hqnWyiPSOdvL9Ya1Dm0QCXph2kaQnXb1s7vgloUnlSEXJlX2OJhFK5t1M0BSQ:KCqL9/m0QCXeg6QlXXJlXrhM5nZSSMd+
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Ransom:Win32/Wyhymyz.A also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 005340df1 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.25531
Cynet Malicious (score: 100)
CAT-QuickHeal Trojan.Netstream
ALYac Trojan.Ransom.Hermes
Cylance Unsafe
Zillya Trojan.Gen.Win32.1733
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_80% (D)
K7GW Trojan ( 005340df1 )
Cybereason malicious.d895ba
Cyren W32/S-1e55bc74!Eldorado
Symantec Ransom.Hermes
ESET-NOD32 a variant of Win32/Kryptik.GHLD
APEX Malicious
Avast Win32:Malware-gen
Kaspersky HEUR:Trojan.Win32.NetStream.gen
BitDefender Trojan.Mint.Zamg.O
NANO-Antivirus Trojan.Win32.Crypmod.fdsujc
MicroWorld-eScan Trojan.Mint.Zamg.O
Tencent Malware.Win32.Gencirc.10b509c7
Ad-Aware Trojan.Mint.Zamg.O
Sophos Mal/Generic-S + Mal/Hermes-C
Comodo TrojWare.Win32.Yakes.GFS@7ou4qj
BitDefenderTheta AI:Packer.5F5AC0681F
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom.Win32.SHADE.SMB.hp
McAfee-GW-Edition Generic.dur
FireEye Generic.mg.a18b85ad895baa1e
Emsisoft Trojan.Mint.Zamg.O (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Gen.vz
Avira HEUR/AGEN.1109184
eGambit PE.Heur.InvalidSig
Microsoft Ransom:Win32/Wyhymyz.A
Arcabit Trojan.Mint.Zamg.O
AegisLab Trojan.Win32.Crypmod.j!c
GData Trojan.Mint.Zamg.O
AhnLab-V3 Trojan/Win32.Hermesran.C2552142
McAfee Generic.dur
MAX malware (ai score=96)
VBA32 BScope.Trojan.Encoder
Malwarebytes Malware.AI.911131138
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom.Win32.SHADE.SMB.hp
Rising Ransom.Crypmod!8.DA9 (CLOUD)
Ikarus Trojan-Dropper.Win32.Bunitu
Fortinet W32/Kryptik.GWSH!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Ransom.83c

How to remove Ransom:Win32/Wyhymyz.A 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.

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/Wyhymyz.A 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/Wyhymyz.A you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
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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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