Ransom:Win32/Tescrypt!rfn

What is Ransom:Win32/Tescrypt!rfn infection?

In this post you will discover regarding the definition of Ransom:Win32/Tescrypt!rfn and also its unfavorable effect on your computer. Such ransomware are a type of malware that is specified by online scams to require paying the ransom by a target.

In the majority of the situations, Ransom:Win32/Tescrypt!rfn infection will certainly instruct its victims to launch funds transfer for the purpose of reducing the effects of the amendments that the Trojan infection has actually introduced to the sufferer’s device.

Ransom:Win32/Tescrypt!rfn Summary

These modifications 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • Compression (or decompression);
  • 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.
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • A process created a hidden window;
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic;
  • Performs some HTTP requests;
  • Uses Windows utilities for basic functionality;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Attempts to delete volume shadow copies;
  • Executed a process and injected code into it, probably while unpacking;
  • Exhibits behavior characteristic of Alphacrypt/Teslacrypt ransomware;
  • 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
  • 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.
  • Attempts to identify installed AV products by registry key;
  • 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 documents situated on the victim’s hard disk — so the sufferer can no longer use the information;
  • Preventing regular 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
dustywinslow.com Ransom.Teslacrypt.OL4
dongxinh.com Ransom.Teslacrypt.OL4
iglesiaelrenacer.com Ransom.Teslacrypt.OL4
lovemydress.pl Ransom.Teslacrypt.OL4
mhomeusa.com Ransom.Teslacrypt.OL4
www.mhomeusa.com Ransom.Teslacrypt.OL4
clothdiapersexpert.com Ransom.Teslacrypt.OL4

Ransom:Win32/Tescrypt!rfn

The most normal networks whereby Ransom:Win32/Tescrypt!rfn are infused are:

  • By means of phishing e-mails;
  • As an effect of user ending up on a resource that hosts a malicious software program;

As quickly as the Trojan is successfully injected, it will certainly either cipher the information on the victim’s computer or stop the tool from operating in a correct way – while also placing a ransom note that states the need for the sufferers to impact the settlement for the function of decrypting the records or bring back the documents system back to the initial condition. In most instances, the ransom money note will show up when the customer reboots the COMPUTER after the system has currently been harmed.

Ransom:Win32/Tescrypt!rfn distribution channels.

In numerous edges of the globe, Ransom:Win32/Tescrypt!rfn expands by jumps and bounds. Nevertheless, the ransom money notes and also tricks of extorting the ransom quantity might differ depending on certain regional (local) settings. The ransom money notes and methods of extorting the ransom money amount might differ depending on particular neighborhood (regional) settings.

Ransomware injection

For instance:

    Faulty notifies concerning unlicensed software.

    In certain areas, the Trojans commonly wrongfully report having discovered some unlicensed applications allowed on the sufferer’s gadget. The alert after that requires the customer to pay the ransom money.

    Faulty declarations regarding illegal content.

    In countries where software application piracy is less prominent, this technique is not as reliable for the cyber frauds. Conversely, the Ransom:Win32/Tescrypt!rfn popup alert may wrongly declare to be originating from a law enforcement establishment and will certainly report having situated youngster porn or other illegal information on the gadget.

    Ransom:Win32/Tescrypt!rfn popup alert might incorrectly declare to be deriving from a regulation enforcement establishment and also will certainly report having situated child porn or various other prohibited data on the tool. The alert will similarly include a demand for the customer to pay the ransom money.

Technical details

File Info:

crc32: 97E0D3FFmd5: ac33a5f90b0310ad525f8456f0cc44cfname: tmpy7ssyf0qsha1: 093efd8d893dd68ddd076364198ae02487934a4csha256: 8204cc77d73c01572c4e9dd835fc3a7aad4eb948ab76ec14eb0cb512162f6876sha512: dfdb79fa8917a645b5bdcab9fc242c577b7c6ff85cebaf937970396f589dfd3e39fa4b27a2e9e7974b7599f7905a5638c1a0bb55ab743999d8ee1eacb3ca8d32ssdeep: 6144:gHJGxQ/PIrk9EwutnWT9M2uW2y3S0fbIamZIzaoLr24xHbifMYqmaG5XPcxz2fG:mJvI2EwutnWT9M2uW2y3SCKIzas5Hbbtype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2016InternalName: EnlistmentFileVersion: 0.165.200.161CompanyName: Subjective SoftwarePrivateBuild: 92, 4, 230, 173LegalTrademarks: CometComments: GoriestProductName: Crumple FonderSpecialBuild: 0.107.92.8ProductVersion: 0.123.142.31FileDescription: Contend Deer GenOriginalFilename: Counterrevolutionariesl.EXE

Ransom:Win32/Tescrypt!rfn also known as:

GridinSoft Trojan.Ransom.Gen
MicroWorld-eScan Trojan.Agent.BQQG
CAT-QuickHeal Ransom.Teslacrypt.OL4
McAfee Ransomware-FEB!AC33A5F90B03
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Malware
K7AntiVirus Trojan ( 004dc0021 )
BitDefender Trojan.Agent.BQQG
K7GW Trojan ( 004dc0021 )
Cybereason malicious.90b031
Invincea heuristic
Baidu Win32.Trojan.Filecoder.k
Cyren W32/Bitman.QEOV-3525
Symantec Trojan.Gen
APEX Malicious
Paloalto generic.ml
GData Trojan.Agent.BQQG
Kaspersky Trojan-Ransom.Win32.Bitman.jur
Alibaba Ransom:Win32/Bitman.d71853fa
NANO-Antivirus Trojan.Win32.Bitman.eamcec
ViRobot Trojan.Win32.R.Agent.380928.BC
Avast Win32:Trojan-gen
Tencent Win32.Trojan.Filelocker.Lndz
Endgame malicious (high confidence)
Emsisoft Trojan.Agent.BQQG (B)
Comodo TrojWare.Win32.Ransom.TeslaCrypt.AS@6avt1u
F-Secure Trojan.TR/AD.TeslaCrypt.Y.229
DrWeb Trojan.AVKill.59943
Zillya Trojan.Filecoder.Win32.2164
TrendMicro Ransom_CRYPTESLA.SMJ7
McAfee-GW-Edition Ransomware-FEB!AC33A5F90B03
FireEye Generic.mg.ac33a5f90b0310ad
Sophos Mal/Ransom-EK
SentinelOne DFI – Suspicious PE
F-Prot W32/Bitman.I
Jiangmin Trojan.Bitman.hs
Webroot Trojan.Teslacrypt
Avira TR/AD.TeslaCrypt.Y.229
Antiy-AVL Trojan[Ransom]/Win32.Bitman
Arcabit Trojan.Agent.BQQG
AegisLab Trojan.Win32.Bitman.4!c
ZoneAlarm Trojan-Ransom.Win32.Bitman.jur
Microsoft Ransom:Win32/Tescrypt!rfn
AhnLab-V3 Trojan/Win32.Tescrypt.R175726
Acronis suspicious
BitDefenderTheta Gen:NN.ZexaF.34090.xq0@aeR63Mci
ALYac Trojan.Agent.BQQG
MAX malware (ai score=88)
VBA32 Hoax.Bitman
Zoner Trojan.Win32.38192
ESET-NOD32 Win32/Filecoder.TeslaCrypt.I
TrendMicro-HouseCall Ransom_CRYPTESLA.SMJ7
Rising Trojan.Ransom-Tesla!1.A322 (CLOUD)
Yandex Trojan.Bitman!
Ikarus Trojan-Ransom.TeslaCrypt
eGambit Generic.Malware
Fortinet W32/Kryptik.EOVH!tr
Ad-Aware Trojan.Agent.BQQG
AVG Win32:Trojan-gen
Panda Trj/CI.A
CrowdStrike win/malicious_confidence_100% (W)
Qihoo-360 Win32/Trojan.Ransom.d4f

How to remove Ransom:Win32/Tescrypt!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

Run the setup file.

Run Setup.exe
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 Scanning

Click on “Clean Now”.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

Full version of GridinSoft

If the guide doesn’t help you to remove Ransom:Win32/Tescrypt!rfn you can always ask me in the comments for getting help.

References

    About the author

    Robert Bailey

    Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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