TrojanSpy:Win32/Larks.A

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

What is TrojanSpy:Win32/Larks.A infection?

In this article you will certainly find about the interpretation of TrojanSpy:Win32/Larks.A as well as its unfavorable influence on your computer system. Such ransomware are a type of malware that is specified by on the internet fraudulences to demand paying the ransom by a sufferer.

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In the majority of the situations, TrojanSpy:Win32/Larks.A virus will certainly instruct its targets to initiate funds move for the objective of counteracting the modifications that the Trojan infection has actually presented to the sufferer’s tool.

TrojanSpy:Win32/Larks.A Summary

These adjustments can be as adheres to:

  • 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.
  • Sniffs keystrokes;
  • 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
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files found on the sufferer’s hard disk drive — so the sufferer can no more use the data;
  • Preventing normal 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.

TrojanSpy:Win32/Larks.A

One of the most common channels through which TrojanSpy:Win32/Larks.A Ransomware Trojans are injected are:

  • By ways of phishing emails;
  • As a repercussion of user winding up on a resource that hosts a harmful software program;

As quickly as the Trojan is effectively infused, it will either cipher the information on the sufferer’s computer or prevent the gadget from operating in a proper way – while likewise positioning a ransom note that points out the demand for the targets to effect the payment for the function of decrypting the documents or restoring the file system back to the first problem. In many instances, the ransom note will certainly show up when the client reboots the PC after the system has actually already been harmed.

TrojanSpy:Win32/Larks.A distribution channels.

In different edges of the world, TrojanSpy:Win32/Larks.A expands by jumps and also bounds. Nonetheless, the ransom money notes and also techniques of extorting the ransom amount might vary depending upon certain neighborhood (regional) settings. The ransom money notes and methods of obtaining the ransom money quantity might differ depending on particular regional (regional) settings.

Ransomware injection

For example:

    Faulty notifies about unlicensed software program.

    In certain locations, the Trojans typically wrongfully report having actually found some unlicensed applications allowed on the victim’s device. The alert after that demands the individual to pay the ransom.

    Faulty declarations about prohibited web content.

    In countries where software application piracy is much less popular, this technique is not as reliable for the cyber frauds. Conversely, the TrojanSpy:Win32/Larks.A popup alert may incorrectly claim to be deriving from a police establishment and also will report having situated youngster porn or other unlawful information on the tool.

    TrojanSpy:Win32/Larks.A popup alert may falsely declare to be acquiring from a law enforcement organization as well as will report having situated kid porn or various other unlawful data on the gadget. The alert will similarly include a demand for the individual to pay the ransom.

Technical details

File Info:

crc32: 9FE744DA
md5: 2bc406aa8f45c1fbb5bab073b4c53313
name: 2BC406AA8F45C1FBB5BAB073B4C53313.mlw
sha1: 61a12ba4e2fa91caabc3899a86edc3976c1ab46d
sha256: 50163b4d76bcb570f30b6093c02987cab31459463434fb35dcec2fcb444ac252
sha512: 6907f9174515026c346e6987ba46d8eb5f9a1aefbd5db19ad56e328aaabcd1a38ea26ad872ba80a1ef73c501cc12575f535460d5e2fa1cce8c4f4ac111a33a40
ssdeep: 768:qXCXyMMZShA4AvN3vILkaGh73MTWqyYaFvW2Nr9wgjcI+E:pyMMbNfILk6abYI+E
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0409 0x04b0
LegalCopyright: Microsoft Corporation
InternalName: dasdasdas
FileVersion: 1.00
CompanyName: Microsoft Corporation
LegalTrademarks: Microsoft Corporation
Comments: Microsoft Corporation
ProductName: Microsoft LifeCam
ProductVersion: 1.00
FileDescription: Host Process for Windows Services
OriginalFilename: dasdasdas.exe

TrojanSpy:Win32/Larks.A also known as:

GridinSoftTrojan.Ransom.Gen
Elasticmalicious (high confidence)
MicroWorld-eScanGen:Variant.Kazy.4997
ALYacGen:Variant.Kazy.4997
CylanceUnsafe
VIPRETrojan.Win32.Generic!BT
AegisLabTrojan.Win32.Blocker.j!c
SangforTrojan.Win32.Save.a
K7AntiVirusTrojan ( 0053260d1 )
BitDefenderGen:Variant.Kazy.4997
K7GWTrojan ( 0053260d1 )
Cybereasonmalicious.a8f45c
BitDefenderThetaAI:Packer.E6F668A120
CyrenW32/Risk.XJLW-5564
SymantecML.Attribute.HighConfidence
ESET-NOD32Win32/PSW.VB.NFJ
BaiduWin32.Trojan.VB.hj
APEXMalicious
AvastWin32:Rootkit-gen [Rtk]
ClamAVWin.Ransomware.Vbmalware-9786411-0
KasperskyTrojan-Ransom.Win32.Blocker.iwdz
NANO-AntivirusTrojan.Win32.Scar.eclufy
ViRobotTrojan.Win32.Scar.49152.E
RisingRansom.Blocker!8.12A (CLOUD)
Ad-AwareGen:Variant.Kazy.4997
EmsisoftGen:Variant.Kazy.4997 (B)
ComodoTrojWare.Win32.Trojan.Generic.32301750@2ne5et
F-SecureTrojan.TR/Crypt.FKM.Gen
DrWebTrojan.MulDrop3.1425
TrendMicroTROJ_FAM_0001115.TOMA
McAfee-GW-EditionGeneric.cza
FireEyeGeneric.mg.2bc406aa8f45c1fb
SophosML/PE-A + Mal/VB-EX
IkarusTrojan.Win32.VB
JiangminTrojan/Generic.kqcx
AviraTR/Crypt.FKM.Gen
MAXmalware (ai score=82)
Antiy-AVLTrojan[Ransom]/Win32.Blocker
MicrosoftTrojanSpy:Win32/Larks.A
ArcabitTrojan.Kazy.D1385
AhnLab-V3Trojan/Win32.Scar.R4224
ZoneAlarmTrojan-Ransom.Win32.Blocker.iwdz
GDataGen:Variant.Kazy.4997
CynetMalicious (score: 90)
McAfeeGeneric.cza
VBA32Trojan.VBRA.02803
MalwarebytesGeneric.Malware/Suspicious
PandaTrj/Genetic.gen
TrendMicro-HouseCallTROJ_FAM_0001115.TOMA
TencentWin32.Trojan.Blocker.Hupw
YandexTrojan.GenAsa!Hzgk9R3kjRw
SentinelOneStatic AI – Suspicious PE
FortinetW32/VB.EX!tr
AVGWin32:Rootkit-gen [Rtk]
Paloaltogeneric.ml
CrowdStrikewin/malicious_confidence_80% (D)
Qihoo-360Win32/Trojan.Ransom.abb

How to remove TrojanSpy:Win32/Larks.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/Larks.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/Larks.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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