TrojanSpy:Win32/Vigorf.A

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

What is TrojanSpy:Win32/Vigorf.A infection?

In this article you will certainly discover about the interpretation of TrojanSpy:Win32/Vigorf.A and also its adverse influence on your computer. Such ransomware are a form of malware that is clarified by on the internet scams to require paying the ransom by a sufferer.

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Most of the instances, TrojanSpy:Win32/Vigorf.A infection will instruct its victims to launch funds move for the purpose of neutralizing the modifications that the Trojan infection has presented to the target’s device.

TrojanSpy:Win32/Vigorf.A Summary

These alterations 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.
  • Performs some HTTP requests;
  • Unconventionial language used in binary resources: Chinese (Simplified);
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Deletes its original binary from disk;
  • A process attempted to delay the analysis task by a long amount of time.;
  • 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
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files located on the sufferer’s disk drive — so the sufferer can no longer make use of the information;
  • 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
lokjuhyt6t.wordpress.comTrojan-Ransom.Win32.Blocker.eabq
www.oaneeo.comTrojan-Ransom.Win32.Blocker.eabq

TrojanSpy:Win32/Vigorf.A

One of the most common channels where TrojanSpy:Win32/Vigorf.A Trojans are injected are:

  • By means of phishing emails;
  • As a repercussion of individual winding up on a source that holds a malicious software application;

As quickly as the Trojan is effectively infused, it will either cipher the data on the target’s PC or avoid the gadget from working in a correct manner – while likewise positioning a ransom money note that points out the need for the targets to impact the payment for the objective of decrypting the records or bring back the file system back to the preliminary problem. In a lot of instances, the ransom money note will certainly show up when the client restarts the PC after the system has actually already been harmed.

TrojanSpy:Win32/Vigorf.A circulation networks.

In different edges of the world, TrojanSpy:Win32/Vigorf.A grows by leaps and also bounds. However, the ransom notes and techniques of extorting the ransom money quantity might vary depending on particular local (regional) setups. The ransom money notes and also methods of extorting the ransom amount may vary depending on specific regional (local) setups.

Ransomware injection

For instance:

    Faulty signals about unlicensed software program.

    In particular locations, the Trojans commonly wrongfully report having actually detected some unlicensed applications made it possible for on the sufferer’s gadget. The alert then requires the user to pay the ransom.

    Faulty statements concerning illegal content.

    In countries where software program piracy is less popular, this method is not as reliable for the cyber scams. Conversely, the TrojanSpy:Win32/Vigorf.A popup alert might wrongly declare to be deriving from a police organization as well as will report having located kid porn or other illegal information on the gadget.

    TrojanSpy:Win32/Vigorf.A popup alert may wrongly claim to be deriving from a law enforcement institution and also will certainly report having situated kid porn or other illegal information on the gadget. The alert will likewise have a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: 7D393B76
md5: f4aec740d3804cf861d32b8c01ca7393
name: F4AEC740D3804CF861D32B8C01CA7393.mlw
sha1: e41da234ec849779382c39d9ddbe8d785d9f3f25
sha256: 244214b0d108e02493fab52a819e581925d7083dac9d82b2ca3133d7d363a47b
sha512: fb7983ae043585d7b0d277c973cdfd83f0ed7b6fcb2d6a186d675f9289e0bf17e3d5a16024f9e31de127d0b365e6bb3822ee7c0c9a91f2f67964d9256569adab
ssdeep: 1536:UAQ7CjRvKWe/ZA7psOYygg7o76pOIzT6RsOnBhE:PT91AZA1sqTpOoT3Eh
type: PE32 executable (GUI) Intel 80386, for MS Windows, PECompact2 compressed

Version Info:

0: [No Data]

TrojanSpy:Win32/Vigorf.A also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware2
K7AntiVirusSpyware ( 0055e3db1 )
Elasticmalicious (high confidence)
DrWebTrojan.DownLoader9.46293
CynetMalicious (score: 100)
ALYacGen:Variant.Barys.117062
CylanceUnsafe
ZillyaTrojan.Blocker.Win32.24800
SangforTrojan.Win32.Save.a
AlibabaTrojanSpy:Win32/Aibatook.4bba6bb3
K7GWSpyware ( 0055e3db1 )
Cybereasonmalicious.0d3804
CyrenW32/Trojan.KRJP-2292
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/Spy.Aibatook.G
APEXMalicious
AvastWin32:Malware-gen
KasperskyTrojan-Ransom.Win32.Blocker.eabq
BitDefenderGen:Variant.Barys.117062
NANO-AntivirusTrojan.Win32.Delphi.cxqpep
MicroWorld-eScanGen:Variant.Barys.117062
TencentWin32.Trojan.Blocker.Ednq
Ad-AwareGen:Variant.Barys.117062
SophosMal/Generic-R + Mal/Behav-214
ComodoTrojWare.Win32.TrojanDownloader.Agent.cdqsj@1wqmzx
BitDefenderThetaGen:NN.ZexaF.34688.eiWaaGnZGbbb
VIPRETrojan.Win32.Generic!BT
TrendMicroTROJ_RANSOM.AP
McAfee-GW-EditionBehavesLike.Win32.Generic.lc
FireEyeGeneric.mg.f4aec740d3804cf8
EmsisoftGen:Variant.Barys.117062 (B)
WebrootW32.Malware.Gen
AviraTR/Dldr.Delphi.Gen
eGambitGeneric.Dropper
KingsoftWin32.Troj.Undef.(kcloud)
MicrosoftTrojanSpy:Win32/Vigorf.A
ArcabitTrojan.Barys.D1C946
AegisLabTrojan.Win32.Blocker.j!c
ZoneAlarmTrojan-Ransom.Win32.Blocker.eabq
GDataGen:Variant.Barys.117062
AhnLab-V3Trojan/Win32.Hupigon.C258856
McAfeeArtemis!F4AEC740D380
MAXmalware (ai score=100)
VBA32Hoax.Blocker
PandaTrj/CI.A
TrendMicro-HouseCallTROJ_RANSOM.AP
RisingRansom.Blocker!8.12A (CLOUD)
IkarusTrojan.Win32.VBKrypt
MaxSecureTrojan.Malware.300983.susgen
FortinetW32/Magania.IDPJ!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml

How to remove TrojanSpy:Win32/Vigorf.A 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 TrojanSpy:Win32/Vigorf.A 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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If the guide doesn’t help you to remove TrojanSpy:Win32/Vigorf.A 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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