Troj/Ransom-GER

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

What is Troj/Ransom-GER infection?

In this post you will locate about the definition of Troj/Ransom-GER as well as its unfavorable impact on your computer system. Such ransomware are a type of malware that is elaborated by online frauds to require paying the ransom by a target.

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Most of the cases, Troj/Ransom-GER infection will certainly instruct its sufferers to launch funds move for the purpose of reducing the effects of the amendments that the Trojan infection has presented to the target’s gadget.

Troj/Ransom-GER Summary

These alterations can be as adheres to:

  • At least one process apparently crashed during execution;
  • 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;
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • Creates an autorun.inf file;
  • 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!
  • 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
  • Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Checks the system manufacturer, likely for anti-virtualization;
  • Creates a copy of itself;
  • Attempts to disable UAC.

    User Account Control or just UAC is a part of the Windows security system which prevents apps from making unwanted changes on PC.

    UAC includes several technologies 1:

    • File and egistry Virtualization;
    • Same-desktop Elevation;
    • Filtered Token;
    • User Interface Privilege Isolation;
    • Protected Mode Internet Explorer;
    • Installer Detection;
  • Attempts to modify UAC prompt behavior;
  • Ciphering the records located on the victim’s hard disk — so the target can no longer make use of the data;
  • Preventing routine access 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.
Similar behavior
Related domains
z.whorecord.xyzTrojan.Ransom.Avaddon
a.tomx.xyzTrojan.Ransom.Avaddon

Troj/Ransom-GER

One of the most regular channels whereby Troj/Ransom-GER Ransomware Trojans are infused are:

  • By means of phishing e-mails;
  • As a consequence of customer ending up on a resource that hosts a malicious software;

As soon as the Trojan is effectively infused, it will certainly either cipher the information on the target’s computer or stop the device from operating in a proper fashion – while additionally positioning a ransom money note that states the requirement for the sufferers to effect the repayment for the function of decrypting the papers or restoring the data system back to the preliminary condition. In many instances, the ransom money note will certainly turn up when the client reboots the PC after the system has already been harmed.

Troj/Ransom-GER distribution channels.

In numerous edges of the globe, Troj/Ransom-GER expands by jumps as well as bounds. Nevertheless, the ransom money notes and tricks of obtaining the ransom amount may vary depending upon certain neighborhood (local) settings. The ransom notes and tricks of obtaining the ransom amount may differ depending on certain regional (local) setups.

Ransomware injection

For instance:

    Faulty alerts about unlicensed software application.

    In certain locations, the Trojans frequently wrongfully report having detected some unlicensed applications made it possible for on the sufferer’s gadget. The alert after that demands the customer to pay the ransom money.

    Faulty declarations about unlawful web content.

    In countries where software application piracy is much less prominent, this method is not as reliable for the cyber frauds. Alternatively, the Troj/Ransom-GER popup alert might incorrectly claim to be originating from a law enforcement institution as well as will certainly report having located youngster pornography or other prohibited information on the gadget.

    Troj/Ransom-GER popup alert may wrongly declare to be deriving from a law enforcement establishment and also will certainly report having situated youngster pornography or various other prohibited information on the gadget. The alert will similarly include a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: 4F6D0957
md5: d8285f65785d6123f918af5f06b349a2
name: D8285F65785D6123F918AF5F06B349A2.mlw
sha1: eb15c193d4754a2c94e01933ea7e75872b3280b0
sha256: 2bee8d8a13aa860bbad160856fb8182017d88b967d96bab10919c713c39f24bf
sha512: 22e5677780a5cf37963ba4cd2763e55d84be3f06368b23abc3c29499f644a94b8a92401c242fa09e08d16d38c61553084ecaca3c23dfa7cea81b2a39c1b6515b
ssdeep: 12288:2TCEoqITFUyBg3xtezkWa5W/yVuyl7gDcarm/qxLJtcCuhurME6L6ry:2TCEJ+CSg3xtezkWa5IyVb9otm/qxt2
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: xa9 Microsoft Corporation. All rights reserved.
InternalName: taskhost.exe
FileVersion: 10.0.17763.831 (WinBuild.160101.0800)
CompanyName: Microsoft Corporation
ProductName: Microsoftxae Windowsxae Operating System
ProductVersion: 10.0.17763.831
FileDescription: Host Process for Windows Tasks
OriginalFilename: taskhost.exe
Translation: 0x0409 0x04b0

Troj/Ransom-GER also known as:

GridinSoftTrojan.Ransom.Gen
K7AntiVirusTrojan ( 00577dec1 )
Elasticmalicious (high confidence)
DrWebTrojan.Encoder.33477
CynetMalicious (score: 100)
ALYacTrojan.Ransom.Avaddon
CylanceUnsafe
ZillyaTrojan.Filecoder.Win32.17713
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (W)
AlibabaRansom:Win32/Avaddon.8c050b01
K7GWTrojan ( 00577dec1 )
Cybereasonmalicious.5785d6
CyrenW32/Ransom.CWIR-0100
SymantecTrojan.Gen.MBT
ESET-NOD32Win32/Filecoder.Avaddon.C
ZonerTrojan.Win32.110341
APEXMalicious
AvastWin32:RansomX-gen [Ransom]
KasperskyHEUR:Trojan-Ransom.Win32.Avaddon.gen
BitDefenderGen:Variant.Ransom.Avaddon.3
NANO-AntivirusTrojan.Win32.DelShad.ikjusp
MicroWorld-eScanGen:Variant.Ransom.Avaddon.3
TencentMalware.Win32.Gencirc.10ce3680
Ad-AwareGen:Variant.Ransom.Avaddon.3
SophosTroj/Ransom-GER
ComodoMalware@#1u37ilwhnmyo4
BitDefenderThetaGen:NN.ZexaF.34722.Vu0@aGfdA!fi
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom.Win32.AVADDON.SMTHA
McAfee-GW-EditionTrojan-FTMI!D8285F65785D
FireEyeGeneric.mg.d8285f65785d6123
EmsisoftGen:Variant.Ransom.Avaddon.3 (B)
SentinelOneStatic AI – Suspicious PE
JiangminTrojan.DelShad.ayx
AviraHEUR/AGEN.1136765
eGambitUnsafe.AI_Score_100%
Antiy-AVLTrojan/Generic.ASMalwS.3132C67
KingsoftWin32.Troj.Undef.(kcloud)
MicrosoftRansom:Win32/Avaddon.MK!MTB
ArcabitTrojan.Ransom.Avaddon.3
AegisLabTrojan.Win32.DelShad.4!c
GDataGen:Variant.Ransom.Avaddon.3
AhnLab-V3Malware/Win.Ransom.R422799
McAfeeTrojan-FTMI!D8285F65785D
MAXmalware (ai score=83)
VBA32Trojan.DelShad
MalwarebytesRansom.Avaddon
PandaTrj/GdSda.A
TrendMicro-HouseCallRansom.Win32.AVADDON.SMTHA
RisingRansom.Avaddon!1.C7A8 (CLASSIC)
YandexTrojan.DelShad!/45YM/sUdvI
IkarusTrojan-Ransom.Avaddon
MaxSecureTrojan.Malware.74279478.susgen
FortinetW32/Avaddon.C!tr.ransom
AVGWin32:RansomX-gen [Ransom]
Paloaltogeneric.ml

How to remove Troj/Ransom-GER 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 GridinSoft2

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft3.

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 Troj/Ransom-GER 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 Troj/Ransom-GER you can always ask me in the comments for getting help.

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References

  1. Microsoft Ignite: How to disable User Account Control (UAC) on Windows Server
  2. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  3. 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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