Win32:TeslaCrypt-BC [Trj]

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

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

In this article you will certainly discover about the definition of Win32:TeslaCrypt-BC [Trj] as well as its unfavorable impact on your computer system. Such ransomware are a type of malware that is clarified by online frauds to demand paying the ransom by a sufferer.

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Most of the instances, Win32:TeslaCrypt-BC [Trj] virus will certainly instruct its sufferers to launch funds transfer for the function of counteracting the amendments that the Trojan infection has actually presented to the victim’s device.

Win32:TeslaCrypt-BC [Trj] Summary

These alterations 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • 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: Norwegian (Nynorsk);
  • Uses Windows utilities for basic functionality;
  • Executed a process and injected code into it, probably while unpacking;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Attempts to delete volume shadow copies;
  • Exhibits behavior characteristic of Alphacrypt/Teslacrypt ransomware;
  • Modifies boot configuration settings;
  • 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
  • Writes a potential ransom message to disk;
  • Attempts to identify installed AV products by registry key;
  • Creates a copy of itself;
  • Creates a known TeslaCrypt/AlphaCrypt ransomware decryption instruction / key file.;
  • 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 records situated on the sufferer’s hard disk drive — so the sufferer can no more use the information;
  • 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-BC [Trj]

One of the most regular networks through which Win32:TeslaCrypt-BC [Trj] Ransomware Trojans are injected are:

  • By means of phishing e-mails;
  • As a consequence of individual ending up on a source that organizes a harmful software application;

As quickly as the Trojan is effectively injected, it will certainly either cipher the information on the sufferer’s computer or protect against the device from operating in an appropriate fashion – while additionally positioning a ransom note that points out the demand for the targets to effect the settlement for the purpose of decrypting the documents or bring back the data system back to the first problem. In many circumstances, the ransom note will come up when the customer restarts the COMPUTER after the system has actually already been harmed.

Win32:TeslaCrypt-BC [Trj] circulation networks.

In various corners of the world, Win32:TeslaCrypt-BC [Trj] grows by jumps as well as bounds. However, the ransom notes as well as techniques of obtaining the ransom money quantity might differ depending on specific neighborhood (regional) setups. The ransom notes and tricks of extorting the ransom amount may differ depending on specific local (regional) settings.

Ransomware injection

For instance:

    Faulty notifies concerning unlicensed software program.

    In specific locations, the Trojans commonly wrongfully report having actually spotted some unlicensed applications enabled on the sufferer’s gadget. The alert then demands the customer to pay the ransom money.

    Faulty declarations about prohibited material.

    In countries where software piracy is less preferred, this approach is not as efficient for the cyber scams. Alternatively, the Win32:TeslaCrypt-BC [Trj] popup alert may falsely claim to be stemming from a police organization as well as will report having located kid pornography or various other prohibited information on the tool.

    Win32:TeslaCrypt-BC [Trj] popup alert might incorrectly declare to be deriving from a regulation enforcement establishment and will certainly report having located kid pornography or various other unlawful data on the tool. The alert will in a similar way include a demand for the individual to pay the ransom.

Technical details

File Info:

crc32: AD86C144
md5: 1b1af48fe1763db5e870208926beeb96
name: 1B1AF48FE1763DB5E870208926BEEB96.mlw
sha1: fb8dd94834055ca2f408655175eae0909bdd2469
sha256: 59ec60f232b17f3c80b05d3bd11f25978bbdd98bafdb323457993693e5cfd530
sha512: 56f6c9bdd76c6ce20bc5d1270b27a6ec17cc074aa8e374721a255116586774236b7a1118902c6adb31e58cf4ea2407823fb78d35927cc62cf0752dd3f8dbe3fd
ssdeep: 6144:yRAThFcbjmaW8KQuAAiEFPu04fhHsuq/FNRJITLsOIex1bUhz4w:8snQUIAiwu04ftsdXHITj3IN4w
type: PE32 executable (console) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Unversed (C) 2012
InternalName: Ballades
FileDescription: Amethystine
OriginalFilename: Warships.exe
CompanyName: Counterpane Systems

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

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 0055e3ef1 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.3158
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.TesCrypt.S6
ALYac Trojan.Agent.BPAG
Cylance Unsafe
Zillya Trojan.Yakes.Win32.43936
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Trojan:Win32/TeslaCrypt.75abaf1c
K7GW Trojan ( 0055e3ef1 )
Cybereason malicious.fe1763
Baidu Win32.Trojan.Filecoder.k
Cyren W32/Trojan.CJXG-7645
Symantec Ransom.TeslaCrypt
ESET-NOD32 Win32/Filecoder.TeslaCrypt.I
APEX Malicious
Avast Win32:TeslaCrypt-BC [Trj]
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Agent.BPAG
NANO-Antivirus Trojan.Win32.Encoder.dzdboe
ViRobot Trojan.Win32.R.Agent.352256.D
SUPERAntiSpyware Trojan.Agent/Gen-Dropper
MicroWorld-eScan Trojan.Agent.BPAG
Tencent Malware.Win32.Gencirc.10c57ae7
Ad-Aware Trojan.Agent.BPAG
Sophos ML/PE-A + Troj/Agent-APPM
Comodo Malware@#97lp8is6vlo5
BitDefenderTheta Gen:NN.ZexaF.34628.vy0@a8knEJjG
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_CRYPTESLA.XXYZ
McAfee-GW-Edition Ransom-Tescrypt.a
FireEye Generic.mg.1b1af48fe1763db5
Emsisoft Trojan.Agent.BPAG (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Trojan.Yakes.dzr
Webroot W32.Trojan.Gen
Avira TR/Dropper.Gen8
eGambit Generic.Malware
Kingsoft Win32.Troj.Generic_a.a.(kcloud)
Microsoft Ransom:Win32/Tescrypt!rfn
AegisLab Trojan.Win32.Generic.4!c
GData Trojan.Agent.BPAG
AhnLab-V3 Trojan/Win32.Teslacrypt.C1312808
McAfee Ransom-Tescrypt.a
MAX malware (ai score=100)
VBA32 Trojan.Yakes
Malwarebytes Malware.Heuristic.1001
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom_CRYPTESLA.XXYZ
Rising Trojan.Ransom-Tesla!1.A322 (CLOUD)
Yandex Trojan.Yakes!XdV2Ei5zvUA
Ikarus Trojan-Ransom.TeslaCrypt
Fortinet W32/TeslaCrypt.I!tr
AVG Win32:TeslaCrypt-BC [Trj]
Qihoo-360 Win32/Ransom.Bitman.HgIASQkA

How to remove Win32:TeslaCrypt-BC [Trj] virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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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-BC [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-BC [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/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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