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

What is Ransom:Win32/Phobos.PC!MTB infection?

In this post you will certainly locate regarding the interpretation of Ransom:Win32/Phobos.PC!MTB and its adverse effect on your computer. Such ransomware are a type of malware that is specified by on-line fraudulences to require paying the ransom by a sufferer.

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In the majority of the situations, Ransom:Win32/Phobos.PC!MTB infection will certainly instruct its sufferers to launch funds move for the function of reducing the effects of the modifications that the Trojan infection has actually presented to the sufferer’s tool.

Ransom:Win32/Phobos.PC!MTB Summary

These modifications can be as adheres to:

  • Possible date expiration check, exits too soon after checking local time;
  • 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;
  • 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;
  • Attempts to delete volume shadow copies;
  • Attempts to stop active services;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • Modifies boot configuration settings;
  • 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
  • Clears Windows events or logs;
  • 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 situated on the sufferer’s hard disk — so the victim can no longer utilize the data;
  • Preventing normal accessibility to the victim’s workstation;


One of the most regular networks where Ransom:Win32/Phobos.PC!MTB are infused are:

  • By means of phishing e-mails;
  • As an effect of individual winding up on a source that holds a destructive software;

As quickly as the Trojan is successfully injected, it will either cipher the data on the victim’s PC or prevent the tool from operating in a correct fashion – while additionally placing a ransom note that discusses the requirement for the targets to impact the payment for the purpose of decrypting the documents or bring back the file system back to the preliminary condition. In most circumstances, the ransom note will show up when the customer restarts the PC after the system has actually already been damaged.

Ransom:Win32/Phobos.PC!MTB distribution networks.

In different corners of the world, Ransom:Win32/Phobos.PC!MTB expands by leaps as well as bounds. Nonetheless, the ransom notes as well as methods of extorting the ransom money amount might vary depending on specific local (regional) settings. The ransom notes and also methods of obtaining the ransom amount may differ depending on particular neighborhood (local) settings.

Ransomware injection

As an example:

    Faulty alerts regarding unlicensed software application.

    In certain locations, the Trojans usually wrongfully report having actually spotted some unlicensed applications allowed on the target’s device. The alert after that requires the customer to pay the ransom.

    Faulty declarations about unlawful web content.

    In countries where software application piracy is less preferred, this approach is not as efficient for the cyber frauds. Alternatively, the Ransom:Win32/Phobos.PC!MTB popup alert might incorrectly assert to be deriving from a police institution as well as will report having situated child pornography or other illegal data on the device.

    Ransom:Win32/Phobos.PC!MTB popup alert might falsely declare to be acquiring from a regulation enforcement organization and also will certainly report having located kid pornography or other unlawful data on the tool. The alert will likewise include a requirement for the user to pay the ransom money.

Technical details

File Info:

crc32: 779601C4
md5: a500866f1d6e57c6da8ce9cb7a18580e
name: tmp7wy1ifsb
sha1: 974a017040038dbf9a09cb6332a9735838322261
sha256: b1971d1ed928593f7cb899962b90a0683682085953ac0b8ff599161e0415d208
sha512: 178eec48a6daedfa23420c4577bed919492eb95607615862478be09cdd9e6f12aa38e95866f2ea039b0be317949145dd5fa699b54b1b289287fc5ec2549e4917
ssdeep: 1536:nNeRBl5PT/rx1mzwRMSTdLpJBabTrC1K:nQRrmzwR5JSy1K
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Ransom:Win32/Phobos.PC!MTB also known as:

GridinSoft Trojan.Ransom.Gen
MicroWorld-eScan Gen:Variant.Ransom.Phobos.62
CAT-QuickHeal Ransom.Phobos.S11618290
McAfee GenericRXJO-ZZ!A500866F1D6E
Cylance Unsafe
K7AntiVirus Trojan ( 00564fee1 )
BitDefender Gen:Variant.Ransom.Phobos.62
K7GW Trojan ( 00564fee1 )
CrowdStrike win/malicious_confidence_100% (W)
Invincea heuristic
F-Prot W32/Ransom.NA.gen!Eldorado
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast Win32:Trojan-gen
ClamAV Win.Ransomware.Ulise-7594403-0
GData Gen:Variant.Ransom.Phobos.62
Kaspersky HEUR:Trojan.Win32.Generic
Alibaba Ransom:Win32/Phobos.13ae558b
NANO-Antivirus Trojan.Win32.Filecoder.himsij
AegisLab Trojan.Win32.Generic.4!c
Rising Ransom.Phobos!1.C277 (CLOUD)
Ad-Aware Gen:Variant.Ransom.Phobos.62
Emsisoft Gen:Variant.Ransom.Phobos.62 (B)
F-Secure Trojan.TR/Crypt.XPACK.Gen
DrWeb Trojan.Encoder.31543
TrendMicro Ransom.Win32.CRYSIS.SMA
McAfee-GW-Edition BehavesLike.Win32.Backdoor.qc
Trapmine malicious.moderate.ml.score
FireEye Generic.mg.a500866f1d6e57c6
Sophos Troj/AutoG-IA
Ikarus Trojan-Ransom.Phobos
Cyren W32/Ransom.NA.gen!Eldorado
Jiangmin Trojan.Generic.ervnl
Webroot W32.Trojan.Gen
Avira TR/Crypt.XPACK.Gen
Endgame malicious (high confidence)
Arcabit Trojan.Ransom.Phobos.62
ZoneAlarm HEUR:Trojan.Win32.Generic
Microsoft Ransom:Win32/Phobos.PC!MTB
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.FileCoder.C4060711
Acronis suspicious
VBA32 BScope.Trojan.MulDrop
ALYac Gen:Variant.Ransom.Phobos.62
MAX malware (ai score=86)
Malwarebytes Ransom.Phobos
Panda Trj/GdSda.A
ESET-NOD32 a variant of Win32/Filecoder.Phobos.C
TrendMicro-HouseCall Ransom.Win32.CRYSIS.SMA
Tencent Win32.Trojan.Filecoder.Ljjk
SentinelOne DFI – Malicious PE
Fortinet W32/Generic.AP.34AB98!tr
BitDefenderTheta Gen:NN.ZexaF.34128.duW@aKJMAkl
AVG Win32:Trojan-gen
Cybereason malicious.040038
Paloalto generic.ml
Qihoo-360 HEUR/QVM20.1.D7DB.Malware.Gen

How to remove Ransom:Win32/Phobos.PC!MTB 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

The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

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/Phobos.PC!MTB 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:Win32/Phobos.PC!MTB 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/
  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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