Trojan.Tiggre

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

What is Trojan.Tiggre infection?

In this article you will certainly discover concerning the interpretation of Trojan.Tiggre and its negative impact on your computer system. Such ransomware are a type of malware that is elaborated by online fraudulences to demand paying the ransom by a sufferer.

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Most of the situations, Trojan.Tiggre virus will certainly advise its sufferers to launch funds transfer for the function of neutralizing the modifications that the Trojan infection has introduced to the target’s tool.

Trojan.Tiggre Summary

These adjustments can be as follows:

  • A process attempted to delay the analysis task.;
  • 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;
  • Performs some HTTP requests;
  • Unconventionial language used in binary resources: Russian;
  • Uses Windows utilities for basic functionality;
  • Deletes its original binary from disk;
  • 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.
  • 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 drive — so the target can no longer make use of 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
down.pzchao.com BehavesLike.Win32.Ransomware.fc

Trojan.Tiggre

The most normal networks through which Trojan.Tiggre Ransomware Trojans are injected are:

  • By ways of phishing e-mails;
  • As a consequence of user winding up on a resource that hosts a destructive software program;

As quickly as the Trojan is successfully infused, it will certainly either cipher the data on the target’s PC or avoid the device from functioning in a proper manner – while also placing a ransom note that states the demand for the sufferers to effect the payment for the objective of decrypting the records or restoring the data system back to the initial problem. In a lot of instances, the ransom note will certainly show up when the customer restarts the PC after the system has actually already been harmed.

Trojan.Tiggre circulation channels.

In different edges of the globe, Trojan.Tiggre grows by leaps as well as bounds. Nevertheless, the ransom notes and techniques of extorting the ransom money amount may differ relying on specific local (regional) setups. The ransom money notes and also tricks of extorting the ransom amount might differ depending on particular local (regional) settings.

Ransomware injection

For example:

    Faulty notifies concerning unlicensed software program.

    In specific locations, the Trojans frequently wrongfully report having actually detected some unlicensed applications allowed on the target’s gadget. The sharp after that requires the customer to pay the ransom.

    Faulty declarations concerning illegal web content.

    In countries where software piracy is less prominent, this method is not as effective for the cyber scams. Alternatively, the Trojan.Tiggre popup alert might falsely claim to be originating from a police institution and also will report having located child porn or various other prohibited information on the tool.

    Trojan.Tiggre popup alert might wrongly assert to be deriving from a regulation enforcement institution as well as will report having located youngster pornography or other illegal data on the tool. The alert will likewise include a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: 5676DBB4
md5: cebe469e488c6a6749d0793d80fd9832
name: up.exe
sha1: 39e7bf7007287311f6a5c367ed68fb584532a00e
sha256: 9a885dac12e21846a4a76db49f2575964c6f76cf8eef654d6d53f6c0628727dd
sha512: 618c744549a6aa6d43544aefc0a9f4e49deb8ef39abfef82a9d111e7fd995bb20456802c2a6038d08b82dae0da49427a8859d7e2ddb1078e5f2063a4497da86c
ssdeep: 6144:eCq6wwZrxOpqa2J0nXeY+QE72U+rZN82TtHKlv3yTBKcdzU+C825+pKRLceevVW:Iwoqa2TQkG382pKlaTBLwu2Apc1ew
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright xa9 2005-2010 Oleg N. Scherbakov
InternalName: 7ZSfxMod
FileVersion: 1.4.0.1934
CompanyName: Oleg N. Scherbakov
PrivateBuild: 2010-11-13
ProductName: 7-Zip SFX
ProductVersion: 1.4.0.1934
FileDescription: 7z Setup SFX (x86)
OriginalFilename: 7ZSfxMod_x86.exe
Translation: 0x0000 0x04b0

Trojan.Tiggre also known as:

GridinSoft Trojan.Ransom.Gen
MicroWorld-eScan Trojan.GenericKD.42045819
FireEye Trojan.GenericKD.42045819
McAfee RDN/GenDownloader.air
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
AegisLab Trojan.Win32.Agent.tppW
Sangfor Malware
K7AntiVirus Trojan-Downloader ( 0054aebd1 )
BitDefender Trojan.GenericKD.42045819
K7GW Trojan-Downloader ( 0054aebd1 )
Symantec W97M.Downloader
APEX Malicious
Avast Win32:Trojan-gen
GData Trojan.GenericKD.42045819
Kaspersky HEUR:Trojan.BAT.Generic
Alibaba TrojanDownloader:BAT/Generic.2062fc52
NANO-Antivirus Trojan.Win32.KillFiles.fttomk
Endgame malicious (high confidence)
Comodo Malware@#gafdssnbageh
F-Secure Trojan.TR/Dldr.Agent.btvma
DrWeb Trojan.KillFiles.64374
TrendMicro TROJ_GEN.R011C0PF719
McAfee-GW-Edition BehavesLike.Win32.Ransomware.fc
Sophos Mal/Generic-S
Cyren W32/Trojan.GSAD-4615
Webroot W32.Trojan.Gen
Avira TR/Dldr.Agent.btvma
MAX malware (ai score=100)
Arcabit Trojan.Generic.D281917B
ZoneAlarm HEUR:Trojan.BAT.Generic
Microsoft Trojan:Win32/Bluteal!rfn
AhnLab-V3 Malware/Win32.Generic.C3280702
VBA32 Trojan.Tiggre
ALYac Trojan.Agent.Bluteal
Ad-Aware Trojan.GenericKD.42045819
ESET-NOD32 BAT/TrojanDownloader.Agent.NPV
TrendMicro-HouseCall TROJ_GEN.R011C0PF719
SentinelOne DFI – Suspicious PE
Fortinet BAT/Generic.NPV!tr
AVG Win32:Trojan-gen
Paloalto generic.ml
CrowdStrike win/malicious_confidence_60% (W)
Qihoo-360 Win32/Trojan.55f

How to remove Trojan.Tiggre 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 install-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 Trojan.Tiggre 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:

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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Trojan.Tiggre 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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