Trojan.CryptoLocker

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

What is Trojan.CryptoLocker infection?

In this post you will certainly discover about the definition of Trojan.CryptoLocker and its unfavorable impact on your computer. Such ransomware are a form of malware that is clarified by on-line frauds to demand paying the ransom money by a victim.

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In the majority of the situations, Trojan.CryptoLocker infection will certainly advise its victims to launch funds move for the objective of reducing the effects of the amendments that the Trojan infection has actually introduced to the sufferer’s device.

Trojan.CryptoLocker 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.
  • 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: Zulu;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • Ciphering the papers located on the target’s hard drive — so the target can no longer utilize the data;
  • 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.

Trojan.CryptoLocker

One of the most common channels through which Trojan.CryptoLocker Trojans are injected are:

  • By ways of phishing emails;
  • As a consequence of individual winding up on a source that holds a malicious software program;

As soon as the Trojan is successfully infused, it will either cipher the information on the target’s computer or protect against the tool from working in a proper manner – while additionally positioning a ransom money note that discusses the demand for the sufferers to effect the repayment for the function of decrypting the files or recovering the file system back to the first problem. In many instances, the ransom note will certainly come up when the customer restarts the PC after the system has already been harmed.

Trojan.CryptoLocker distribution networks.

In numerous corners of the globe, Trojan.CryptoLocker expands by leaps as well as bounds. Nevertheless, the ransom notes as well as tricks of extorting the ransom amount may differ depending upon certain regional (local) setups. The ransom notes and also techniques of extorting the ransom amount might differ depending on certain local (local) setups.

Ransomware injection

As an example:

    Faulty signals concerning unlicensed software application.

    In certain areas, the Trojans often wrongfully report having spotted some unlicensed applications enabled on the sufferer’s gadget. The sharp then requires the user to pay the ransom money.

    Faulty statements about prohibited web content.

    In nations where software program piracy is much less popular, this approach is not as effective for the cyber frauds. Additionally, the Trojan.CryptoLocker popup alert may incorrectly claim to be deriving from a law enforcement institution as well as will report having located kid pornography or other prohibited information on the gadget.

    Trojan.CryptoLocker popup alert may incorrectly declare to be acquiring from a regulation enforcement organization and also will certainly report having located youngster pornography or other illegal information on the device. The alert will in a similar way contain a need for the user to pay the ransom.

Technical details

File Info:

crc32: 955EF108
md5: 3bf7734a289b0eaf5ab9b72c514d2c02
name: 3BF7734A289B0EAF5AB9B72C514D2C02.mlw
sha1: ae2fed972152fad680aca6d97944fb6cd6c701ff
sha256: 50b54e6376369ac351eaecb9351b7633333209fd54c949fab5e774be0a925db6
sha512: 68813e3eb35b938ba065012b85b3d0bc30ffcc6aa0daabbe81313412b9af9025429f861943376853a984788f1acf9a352cf4030ffc33361dab50545b76f6e714
ssdeep: 6144:AA8JYe8rWneBxg4RUta7Jq3XvojXU7yJzPe9WCilKr:he8ps4OUFqOXU7yJ69fisr
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Lecturers xa9 1902
InternalName: Microbic
FileVersion: 149, 170, 63, 106
CompanyName: Nsasoft LLC.
PrivateBuild:
LegalTrademarks:
Comments:
ProductName: Misplace Promised
SpecialBuild:
ProductVersion:
FileDescription: Overuse
OriginalFilename: Principally.exe

Trojan.CryptoLocker also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 0055dd191 )
Elasticmalicious (high confidence)
DrWebTrojan.DownLoader15.48201
CynetMalicious (score: 100)
CAT-QuickHealRansom.TeslaCrypt.WR4
CylanceUnsafe
ZillyaTrojan.Bitman.Win32.337
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
AlibabaRansom:Win32/Bitman.0a380a1f
K7GWTrojan ( 0055dd191 )
Cybereasonmalicious.a289b0
SymantecRansom.TeslaCrypt
ESET-NOD32a variant of Win32/Kryptik.DTQL
APEXMalicious
AvastWin32:Malware-gen
KasperskyTrojan-Ransom.Win32.Bitman.ww
BitDefenderTrojan.Cripack.Gen.1
NANO-AntivirusTrojan.Win32.Bitman.dvkwvt
ViRobotTrojan.Win32.Ransom.267719
SUPERAntiSpywareTrojan.Agent/Gen-Malagent
MicroWorld-eScanTrojan.Cripack.Gen.1
TencentMalware.Win32.Gencirc.114c7ae6
Ad-AwareTrojan.Cripack.Gen.1
SophosMal/Generic-S
ComodoMalware@#m176p0ujwcp8
BitDefenderThetaGen:NN.ZexaF.34628.qq3@aa6ISHhG
VIPRETrojan.Win32.Generic!BT
TrendMicroCryp_HpMyApp
McAfee-GW-EditionTeslaCrypt!3BF7734A289B
FireEyeGeneric.mg.3bf7734a289b0eaf
EmsisoftTrojan.Cripack.Gen.1 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan/Bitman.fa
WebrootTrojan.Dropper.Gen
AviraHEUR/AGEN.1101453
eGambitGeneric.Malware
KingsoftWin32.Troj.GenericKD.v.(kcloud)
MicrosoftRansom:Win32/Tescrypt.A
ArcabitTrojan.Cripack.Gen.1
AegisLabTrojan.Win32.Bitman.4!c
GDataTrojan.Cripack.Gen.1
AhnLab-V3Win-Trojan/Lockycrypt.Gen
Acronissuspicious
McAfeeTeslaCrypt!3BF7734A289B
MAXmalware (ai score=100)
VBA32Hoax.Bitman
MalwarebytesTrojan.CryptoLocker
PandaTrj/Genetic.gen
TrendMicro-HouseCallCryp_HpMyApp
RisingRansom.Bitman!8.6A2 (CLOUD)
YandexTrojan.Bitman!GAlzAbl9wME
IkarusTrojan.Win32.Crypt
FortinetW32/Papras.EH!tr
AVGWin32:Malware-gen
Qihoo-360Win32/Ransom.Bitman.HwcBALwC

How to remove Trojan.CryptoLocker 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 Trojan.CryptoLocker 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

Full version of GridinSoft Anti-Malware

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