Ransom:Win32/Tovicrypt!rfn

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

What is Ransom:Win32/Tovicrypt!rfn infection?

In this article you will certainly locate regarding the definition of Ransom:Win32/Tovicrypt!rfn as well as its negative impact on your computer. Such ransomware are a type of malware that is elaborated by on-line frauds to demand paying the ransom by a target.

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In the majority of the instances, Ransom:Win32/Tovicrypt!rfn virus will certainly advise its sufferers to start funds transfer for the function of neutralizing the modifications that the Trojan infection has introduced to the sufferer’s tool.

Ransom:Win32/Tovicrypt!rfn Summary

These adjustments 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.
  • Unconventionial language used in binary resources: Russian;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files situated on the victim’s hard disk — so the target can no longer use the data;
  • Preventing routine access to the sufferer’s workstation;

Ransom:Win32/Tovicrypt!rfn

One of the most regular channels where Ransom:Win32/Tovicrypt!rfn Trojans are infused are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As a repercussion of individual ending up on a resource that hosts a harmful software;

As quickly as the Trojan is successfully infused, it will certainly either cipher the information on the victim’s PC or prevent the gadget from operating in a correct way – while likewise placing a ransom note that mentions the need for the victims to effect the repayment for the objective of decrypting the files or bring back the data system back to the preliminary problem. In most circumstances, the ransom note will turn up when the customer reboots the COMPUTER after the system has actually already been damaged.

Ransom:Win32/Tovicrypt!rfn distribution channels.

In various edges of the globe, Ransom:Win32/Tovicrypt!rfn expands by leaps and bounds. However, the ransom notes and also tricks of extorting the ransom money amount may differ relying on certain neighborhood (local) setups. The ransom notes as well as techniques of extorting the ransom quantity might vary depending on certain local (local) settings.

Ransomware injection

As an example:

    Faulty alerts regarding unlicensed software application.

    In particular locations, the Trojans typically wrongfully report having actually discovered some unlicensed applications enabled on the target’s gadget. The sharp then demands the customer to pay the ransom money.

    Faulty declarations concerning unlawful web content.

    In countries where software piracy is much less preferred, this approach is not as efficient for the cyber fraudulences. Alternatively, the Ransom:Win32/Tovicrypt!rfn popup alert may falsely declare to be stemming from a police organization and also will certainly report having situated youngster pornography or other unlawful data on the gadget.

    Ransom:Win32/Tovicrypt!rfn popup alert may wrongly declare to be acquiring from a law enforcement institution as well as will report having situated child pornography or other illegal data on the tool. The alert will likewise contain a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: 7A3E7D69
md5: b8509f72a4f3de76673bb833f8781161
name: B8509F72A4F3DE76673BB833F8781161.mlw
sha1: 2bfed4ebd80eedb6e2d0dca40fd79bb79d7d11d1
sha256: 45ec752f2915a28de8873a1fe025255a77ac42d29c64b242ed525adc242bd20c
sha512: cdc4c18aaef74e949efd64515af55e11718351ad541d1fc06c8869de94f0be9a0210305bfdeda3a74f917409ac771f26d6399b79cffa8a08de7b2bcdf7b4c08c
ssdeep: 1536:BjBwCerW6enLwFA3TPopPhijXYCUmRlrvDLXnJ:BEdenLwFAEpPaXocl/LXnJ
type: PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows

Version Info:

InternalName: trr
FileVersion: 2.66
CompanyName: NirSoft
ProductName: NirCmd
ProductVersion: 2.66
FileDescription: NirCmd
OriginalFilename: NirCmd.exe
Translation: 0x0409 0x04b0

Ransom:Win32/Tovicrypt!rfn also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware2
K7AntiVirusTrojan ( 004f8bc31 )
Elasticmalicious (high confidence)
DrWebTrojan.Encoder.5047
CynetMalicious (score: 100)
CAT-QuickHealRansom.Crowti.MUE.A6
ALYacGen:Variant.Ransom.CryptXXX.1
CylanceUnsafe
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
AlibabaTrojan:Win32/Kryptik.4e270e52
K7GWTrojan ( 004f8bc31 )
Cybereasonmalicious.2a4f3d
CyrenW32/S-b308e227!Eldorado
ESET-NOD32a variant of Win32/Kryptik.HGEN
APEXMalicious
AvastWin32:Goblinek [Inf]
KasperskyHEUR:Trojan-Ransom.Win32.Agent.pef
BitDefenderGen:Variant.Ransom.CryptXXX.1
NANO-AntivirusTrojan.Win32.Kryptik.evrgob
MicroWorld-eScanGen:Variant.Ransom.CryptXXX.1
TencentMalware.Win32.Gencirc.10b58d82
Ad-AwareGen:Variant.Ransom.CryptXXX.1
SophosMal/Generic-S
ComodoMalCrypt.Indus!@1qrzi1
BitDefenderThetaGen:NN.ZexaF.34608.gy0@a0JY6LoU
VIPRETrojan.Win32.Generic.pak!cobra
TrendMicroRansom_HPCRYPMIC.SM4
McAfee-GW-EditionBehavesLike.Win32.PUPXER.nh
FireEyeGeneric.mg.b8509f72a4f3de76
EmsisoftGen:Variant.Ransom.CryptXXX.1 (B)
SentinelOneStatic AI – Malicious PE
AviraHEUR/AGEN.1128192
eGambitUnsafe.AI_Score_99%
MicrosoftRansom:Win32/Tovicrypt!rfn
ArcabitTrojan.Ransom.CryptXXX.1
AegisLabTrojan.Win32.Generic.4!c
GDataGen:Variant.Ransom.CryptXXX.1
AhnLab-V3Trojan/Win32.CryptXXX.R188351
Acronissuspicious
McAfeeRansomware-FTK!B8509F72A4F3
MAXmalware (ai score=99)
VBA32BScope.Trojan.Bagsu
MalwarebytesMalware.AI.929094131
PandaTrj/Genetic.gen
TrendMicro-HouseCallRansom_HPCRYPMIC.SM4
RisingRansom.Agent!8.6B7 (CLOUD)
YandexTrojan.GenAsa!NrwxPak0V3U
IkarusTrojan-Ransom.Tovicrypt
FortinetW32/Kryptik.FNZR!tr
AVGWin32:Goblinek [Inf]
Paloaltogeneric.ml
Qihoo-360Win32/Trojan.Generic.HgIASOMA

How to remove Ransom:Win32/Tovicrypt!rfn 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 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:Win32/Tovicrypt!rfn 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

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If the guide doesn’t help you to remove Ransom:Win32/Tovicrypt!rfn 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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