Teslacrypt

MITRE ATT&CK does not currently catalogue Teslacrypt, so this is our assessment of the techniques it uses, drawn from public reporting. The techniques themselves, and every "what that means" definition below, come from MITRE ATT&CK v19.2. Confidence: low. Treat it as orientation, not attribution.

1. T1059.001 PowerShell Execution

   What they do: teslacrypt uses PowerShell scripts to execute malicious commands across compromised systems.

   What that means: Adversaries may abuse PowerShell commands and scripts for execution.

2. T1685 Disable or Modify Tools Defense Impairment

   What they do: teslacrypt disables antivirus tools and security monitoring mechanisms to evade detection.

   What that means: Adversaries may disable, degrade, or tamper with security tools or applications (e.g., endpoint detection and response (EDR) tools, intrusion detection systems (IDS), antivirus, logging agents, sensors, etc.) to impair or reduce visibility of defensive capabilities.

3. T1027.016 Junk Code Insertion Stealth

   What they do: teslacrypt inserts junk code into binaries to evade static analysis and detection.

   What that means: Adversaries may use junk code / dead code to obfuscate a malware’s functionality.

4. T1070.004 File Deletion Stealth

   What they do: teslacrypt deletes Volume Shadow Copies and backup files to prevent recovery.

   What that means: Adversaries may delete files left behind by the actions of their intrusion activity.

5. T1110 Brute Force Credential Access

   What they do: teslacrypt brute-forces local accounts to gain initial access to victim machines.

   What that means: Adversaries may use brute force techniques to gain access to accounts when passwords are unknown or when password hashes are obtained.

6. T1083 File and Directory Discovery Discovery

   What they do: teslacrypt scans file and directory structures to identify files suitable for encryption.

   What that means: Adversaries may enumerate files and directories or may search in specific locations of a host or network share for certain information within a file system.

7. T1486 Data Encrypted for Impact Impact

   What they do: teslacrypt encrypts victim files using its own ransomware payload to hold data hostage.

   What that means: Adversaries may encrypt data on target systems or on large numbers of systems in a network to interrupt availability to system and network resources.

8. T1489 Service Stop Impact

   What they do: teslacrypt stops critical Windows services and processes to disrupt victim operations during encryption.

   What that means: Adversaries may stop or disable services on a system to render those services unavailable to legitimate users.

Crowdsourced payment data from Ransomwhere, licensed CC BY 4.0. Figures are what has been reported and attributed to this family, not a confirmed total. Cite as: Cable, Jack. (2024). Ransomwhere: A Crowdsourced Ransomware Payment Dataset (1.1.0) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.6512122

The note this group leaves on a compromised machine. Click a filename to read it.

NOT YOUR LANGUAGE? USE https://translate.google.com 

What happened to your files ?
All of your files were protected by a strong encryption with RSA4096 
More information about the encryption keys using RSA4096 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem)

How did this happen ?
!!! Specially for your PC was generated personal RSA4096 KEY, both public and private.
!!! ALL YOUR FILES were encrypted with the public key, which has been transferred to your computer via the Internet.
!!! Decrypting of your files is only possible with the help of the private key and decrypt program , which is on our Secret Server 

What do I do ?
So, there are two ways you can choose: wait for a miracle and get your price doubled, or start obtaining BITCOIN NOW! , and restore your data easy way.
If You have really valuable data, you better not waste your time, because there is no other way to get your files, except make a payment.

For more specific instructions, please visit your personal home page, there are a few different addresses pointing to your page below:
1. http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/[snip]
2. http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/[snip]
3. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/[snip]
If for some reasons the addresses are not available, follow these steps:
1. Download and install tor-browser: http://www.torproject.org/projects/torbrowser.html.en 
2. After a successful installation, run the browser  
3. Type in the address bar: xlowfznrg4wf7dli.onion/[snip] 
4. Follow the instructions on the site.

---------------- IMPORTANT INFORMATION------------------------
*-*-* Your personal pages:
http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/[snip]
http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/[snip]
http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/[snip] 
*-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/[snip]

Ransom-note text from RansomLook, licensed CC BY 4.0.