Ransom.Repter

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

What is Ransom.Repter infection?

In this post you will discover regarding the meaning of Ransom.Repter as well as its negative effect on your computer system. Such ransomware are a form of malware that is clarified by on-line fraudulences to demand paying the ransom money by a victim.

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In the majority of the cases, Ransom.Repter ransomware will instruct its targets to launch funds transfer for the purpose of neutralizing the changes that the Trojan infection has introduced to the target’s tool.

Ransom.Repter Summary

These adjustments can be as adheres to:

  • Attempts to connect to a dead IP:Port (2 unique times);
  • 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.;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • Performs some HTTP requests;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • The executable is compressed using UPX;
  • Executed a very long command line or script command which may be indicative of chained commands or obfuscation;
  • Uses Windows utilities for basic functionality;
  • Attempts to delete volume shadow copies;
  • 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
  • Exhibits possible ransomware file modification behavior;
  • Writes a potential ransom message to disk;
  • 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.
  • Clears Windows events or logs;
  • Attempts to disable Windows Defender;
  • Attempts to block SafeBoot use by removing registry keys;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the documents situated on the target’s hard disk — so the victim can no longer utilize the data;
  • Preventing normal access 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.
Similar behavior
Related domains
redirector.gvt1.comTrojan.Ransom.Filecoder
r8—sn-bpb5oxu-3c2r.gvt1.comTrojan.Ransom.Filecoder

Ransom.Repter

The most normal networks where Ransom.Repter Trojans are injected are:

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

As quickly as the Trojan is successfully injected, it will certainly either cipher the information on the target’s computer or stop the tool from functioning in a correct way – while additionally putting a ransom money note that discusses the demand for the victims to impact the payment for the purpose of decrypting the documents or bring back the documents system back to the first condition. In most circumstances, the ransom money note will certainly come up when the client restarts the PC after the system has already been damaged.

Ransom.Repter circulation channels.

In various corners of the world, Ransom.Repter expands by leaps and bounds. Nonetheless, the ransom money notes and also methods of obtaining the ransom money quantity might vary depending upon specific local (local) settings. The ransom notes as well as methods of obtaining the ransom money quantity may vary depending on certain regional (local) settings.

Ransomware injection

For instance:

    Faulty signals about unlicensed software program.

    In particular areas, the Trojans typically wrongfully report having actually identified some unlicensed applications allowed on the sufferer’s device. The sharp after that requires the user to pay the ransom.

    Faulty statements about prohibited content.

    In nations where software piracy is less preferred, this approach is not as effective for the cyber scams. Additionally, the Ransom.Repter popup alert might wrongly assert to be originating from a police organization and will report having located kid porn or other prohibited information on the tool.

    Ransom.Repter popup alert might wrongly assert to be obtaining from a law enforcement organization and will report having situated youngster pornography or other unlawful information on the gadget. The alert will in a similar way consist of a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: 3CBD1509
md5: 784d27170c1761184cef189fa4889cc6
name: 784D27170C1761184CEF189FA4889CC6.mlw
sha1: 625dfcece6874d9bfd81020004c648e15588e518
sha256: 5ef2a211e48b408b0e5c9dfac30683e8f7eb83231c11e25c01368b0ef1868ea1
sha512: c4696ce309e5986344d372289830645099c70021d7e2e7bbdc4ff6192e369e9b29604773f065f9cf284d61bc2979a98136bdbb3c3eb1caf6c44b5baa68319d08
ssdeep: 6144:oTJph8gtnqvOQEKhO7aXhfPubAs+DkgRW6GO9b7PnJvUoSBgqwU:oTzm0NKy+huMPDYsfaoSqqwU
type: PE32 executable (console) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

Ransom.Repter also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware2
K7AntiVirusTrojan ( 004f78ba1 )
Elasticmalicious (high confidence)
DrWebTrojan.Encoder.32127
CynetMalicious (score: 100)
CAT-QuickHealTrojan.GenericRI.S14778417
ALYacTrojan.Ransom.Filecoder
CylanceUnsafe
ZillyaTrojan.Filecoder.Win32.15291
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (W)
AlibabaTrojan:Win32/Occamy.a97692c6
K7GWTrojan ( 004f78ba1 )
Cybereasonmalicious.70c176
CyrenW32/Trojan.SUAE-3921
SymantecRansom.Fonix
ESET-NOD32Win32/Filecoder.NHQ
APEXMalicious
AvastWin32:RansomX-gen [Ransom]
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderGeneric.Ransom.DMR.6C01C044
NANO-AntivirusTrojan.Win32.Encoder.hnqmlm
MicroWorld-eScanGeneric.Ransom.DMR.6C01C044
TencentWin32.Trojan.Raas.Auto
Ad-AwareGeneric.Ransom.DMR.6C01C044
SophosMal/Generic-S
ComodoMalware@#3f21fxnplkyan
BitDefenderThetaGen:NN.ZexaF.34738.BmGfae17m6hi
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_FonixCrypt.R007C0DDO21
McAfee-GW-EditionGenericRXLJ-KF!B562B3E9D742
FireEyeGeneric.mg.784d27170c176118
EmsisoftGeneric.Ransom.DMR.6C01C044 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan.Generic.fpimg
AviraTR/AD.RansomHeur.nbtow
eGambitUnsafe.AI_Score_100%
KingsoftWin32.Troj.Undef.(kcloud)
MicrosoftRansom:Win64/FonixCrypt.AC!MTB
AegisLabTrojan.Win32.Generic.4!c
GDataGeneric.Ransom.DMR.6C01C044
TACHYONRansom/W32.Repter.943616
McAfeeArtemis!784D27170C17
MAXmalware (ai score=100)
VBA32BScope.Trojan.Encoder
MalwarebytesRansom.Repter
TrendMicro-HouseCallRansom_FonixCrypt.R007C0DDO21
YandexTrojan.Filecoder!91dKuYwB5to
IkarusTrojan-Ransom.FileCrypter
MaxSecureTrojan.Malware.7164915.susgen
FortinetRiskware/Generic
AVGWin32:RansomX-gen [Ransom]
Paloaltogeneric.ml

How to remove Ransom.Repter 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

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.Repter 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.Repter 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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