Win32:TeslaCrypt-AG [Trj]

Written by Robert Bailey

What is Win32:TeslaCrypt-AG [Trj] infection?

In this short article you will certainly discover concerning the interpretation of Win32:TeslaCrypt-AG [Trj] and its negative effect on your computer. Such ransomware are a type of malware that is specified by online scams to demand paying the ransom by a target.

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Most of the cases, Win32:TeslaCrypt-AG [Trj] ransomware will advise its victims to launch funds transfer for the function of reducing the effects of the amendments that the Trojan infection has introduced to the sufferer’s device.

Win32:TeslaCrypt-AG [Trj] Summary

These modifications 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.
  • 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;
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • Unconventionial language used in binary resources: Portuguese;
  • Uses Windows utilities for basic functionality;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Attempts to delete volume shadow copies;
  • Deletes its original binary from disk;
  • 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
  • Attempts to identify installed AV products by registry key;
  • Creates a copy of itself;
  • Created a service that was not started;
  • 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 files situated on the victim’s hard disk drive — so the target can no more utilize the data;
  • Preventing normal accessibility to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Win32:TeslaCrypt-AG [Trj]

One of the most common channels whereby Win32:TeslaCrypt-AG [Trj] are infused are:

  • By ways of phishing e-mails;
  • As an effect of customer winding up on a source that holds a destructive software program;

As soon as the Trojan is efficiently injected, it will either cipher the data on the sufferer’s PC or avoid the device from working in a correct manner – while likewise putting a ransom money note that mentions the need for the sufferers to effect the payment for the objective of decrypting the papers or bring back the documents system back to the first problem. In a lot of circumstances, the ransom money note will certainly show up when the client reboots the COMPUTER after the system has already been harmed.

Win32:TeslaCrypt-AG [Trj] distribution networks.

In various corners of the world, Win32:TeslaCrypt-AG [Trj] grows by jumps and also bounds. Nevertheless, the ransom money notes and techniques of obtaining the ransom money quantity may differ relying on particular regional (regional) setups. The ransom notes and also tricks of extorting the ransom money quantity might vary depending on certain local (regional) setups.

Ransomware injection

As an example:

    Faulty notifies regarding unlicensed software.

    In particular locations, the Trojans typically wrongfully report having detected some unlicensed applications enabled on the target’s gadget. The sharp then demands the customer to pay the ransom money.

    Faulty declarations regarding prohibited material.

    In nations where software piracy is less popular, this technique is not as reliable for the cyber fraudulences. Additionally, the Win32:TeslaCrypt-AG [Trj] popup alert might wrongly claim to be originating from a police establishment and also will report having situated kid pornography or other prohibited data on the tool.

    Win32:TeslaCrypt-AG [Trj] popup alert may falsely declare to be deriving from a legislation enforcement organization as well as will report having located youngster porn or various other illegal information on the gadget. The alert will similarly have a need for the user to pay the ransom.

Technical details

File Info:

crc32: 84ECAF1E
md5: 9aca5f20b397ea8f429decbafd177ffc
name: 9ACA5F20B397EA8F429DECBAFD177FFC.mlw
sha1: 287fba6e52821ff4afff9da109006f82936a4af0
sha256: bd63fd3f070b0d9f7b6c694fe096da5dddf60fe28e5182a76e8d14dc000e81dc
sha512: dc4b57810bc385affc79904c8982eba066611519caccfb5ab6d19f18e7f14206a752b6b3c775c76c28d2aa0fcbbffe15c338048ec4b37d5ba7c4bdb06952ba42
ssdeep: 6144:J/HgOTMr2rSBq+SPKLQliP4vBTbznzg0RIk:aOTMKr1mq20RD
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Themas xa9 2057
InternalName: Bloodstock
FileVersion: 137, 78, 141, 8
CompanyName: McAfee Corporation
ProductName: Basilisks Wheaten
FileDescription: Warmed
OriginalFilename: Amputee.exe

Win32:TeslaCrypt-AG [Trj] also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 004d41c61 )
Elastic malicious (high confidence)
DrWeb Trojan.DownLoader16.9556
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.TeslaCrypt.WR4
ALYac Gen:Variant.Ransom.1640
Cylance Unsafe
Zillya Trojan.Filecoder.Win32.765
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Ransom:Win32/Yakes.45a72162
K7GW Trojan ( 004d41c61 )
Cybereason malicious.0b397e
Symantec Ransom.TeslaCrypt
ESET-NOD32 Win32/Filecoder.TeslaCrypt.E
APEX Malicious
Avast Win32:TeslaCrypt-AG [Trj]
Kaspersky Trojan.Win32.Yakes.ncgn
BitDefender Gen:Variant.Ransom.1640
NANO-Antivirus Trojan.Win32.Dwn.dwjqoy
ViRobot Trojan.Win32.Ransom.316623
MicroWorld-eScan Gen:Variant.Ransom.1640
Tencent Malware.Win32.Gencirc.114c7b7c
Ad-Aware Gen:Variant.Ransom.1640
Sophos Mal/Generic-R + Mal/Tinba-AB
Comodo TrojWare.Win32.TrojanDownloader.Upatre.EBO@5zjcok
BitDefenderTheta Gen:NN.ZexaF.34628.tq3@aaPIQfkG
VIPRE Trojan.Win32.Generic!BT
TrendMicro TROJ_FRS.0NA103BL20
McAfee-GW-Edition TeslaCrypt!9ACA5F20B397
FireEye Generic.mg.9aca5f20b397ea8f
Emsisoft Gen:Variant.Ransom.1640 (B)
Jiangmin Trojan.Yakes.upi
Webroot Trojan.Dropper.Gen
Avira HEUR/AGEN.1124203
eGambit Generic.Malware
Microsoft Ransom:Win32/Tescrypt.C
AegisLab Trojan.Win32.Yakes.4!c
GData Gen:Variant.Ransom.1640
AhnLab-V3 Win-Trojan/Lockycrypt.Gen
Acronis suspicious
McAfee TeslaCrypt!9ACA5F20B397
MAX malware (ai score=100)
VBA32 BScope.Trojan.Yakes
Panda Trj/Genetic.gen
TrendMicro-HouseCall TROJ_FRS.0NA103BL20
Rising Ransom.Tescrypt!8.3AF (CLOUD)
Yandex Trojan.GenAsa!On7MfCjlIik
SentinelOne Static AI – Malicious PE
Fortinet W32/Deshacop.XO!tr
AVG Win32:TeslaCrypt-AG [Trj]
Qihoo-360 Win32/Ransom.Tescrypt.HwcBZxsA

How to remove Win32:TeslaCrypt-AG [Trj] 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

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 Win32:TeslaCrypt-AG [Trj] 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 Win32:TeslaCrypt-AG [Trj] 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/products/

About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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