Cервис управления информационной безопасностью
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MITRE ATT&CK - Инструмент FlawedAmmyy
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FlawedAmmyy
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SECURITM это SGRC система, ? автоматизирующая процессы в службах информационной безопасности. SECURITM помогает построить и управлять ИСПДн, КИИ, ГИС, СМИБ/СУИБ, банковскими системами защиты.
А еще SECURITM это место для обмена опытом и наработками для служб безопасности.
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FlawedAmmyy

FlawedAmmyy is a remote access tool (RAT) that was first seen in early 2016. The code for FlawedAmmyy was based on leaked source code for a version of Ammyy Admin, a remote access software.(Citation: Proofpoint TA505 Mar 2018)
ID: S0381
Type: MALWARE
Platforms: Windows
Version: 1.2
Created: 28 May 2019
Last Modified: 18 Jul 2022

Techniques Used
Domain ID Name Use
Enterprise T1071 .001 Application Layer Protocol: Web Protocols

FlawedAmmyy has used HTTP for C2.(Citation: Proofpoint TA505 Mar 2018)
Enterprise T1547 .001 Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder

FlawedAmmyy has established persistence via the `HKCU\SOFTWARE\microsoft\windows\currentversion\run` registry key.(Citation: Korean FSI TA505 2020)
Enterprise T1059 .001 Command and Scripting Interpreter: PowerShell

FlawedAmmyy has used PowerShell to execute commands.(Citation: Korean FSI TA505 2020)
.003 Command and Scripting Interpreter: Windows Command Shell

FlawedAmmyy has used `cmd` to execute commands on a compromised host.(Citation: Korean FSI TA505 2020)

Enterprise T1573 .001 Encrypted Channel: Symmetric Cryptography

FlawedAmmyy has used SEAL encryption during the initial C2 handshake.(Citation: Proofpoint TA505 Mar 2018)
Enterprise T1070 .004 Indicator Removal: File Deletion

FlawedAmmyy can execute batch scripts to delete files.(Citation: Korean FSI TA505 2020)
Enterprise T1056 .001 Input Capture: Keylogging

FlawedAmmyy can collect keyboard events.(Citation: Korean FSI TA505 2020)
Enterprise T1069 .001 Permission Groups Discovery: Local Groups

FlawedAmmyy enumerates the privilege level of the victim during the initial infection.(Citation: Proofpoint TA505 Mar 2018)(Citation: Korean FSI TA505 2020)
Enterprise T1518 .001 Software Discovery: Security Software Discovery

FlawedAmmyy will attempt to detect anti-virus products during the initial infection.(Citation: Proofpoint TA505 Mar 2018)
Enterprise T1218 .007 System Binary Proxy Execution: Msiexec

FlawedAmmyy has been installed via `msiexec.exe`.(Citation: Korean FSI TA505 2020)

.011 System Binary Proxy Execution: Rundll32

FlawedAmmyy has used `rundll32` for execution.(Citation: Korean FSI TA505 2020)

Groups That Use This Software
ID Name References
G0037 FIN6

(Citation: Visa FIN6 Feb 2019)

G0092 TA505

(Citation: Proofpoint TA505 Mar 2018) (Citation: Trend Micro TA505 June 2019) (Citation: Proofpoint TA505 October 2019)

References

  1. Proofpoint Staff. (2018, March 7). Leaked Ammyy Admin Source Code Turned into Malware. Retrieved May 28, 2019.
  2. Financial Security Institute. (2020, February 28). Profiling of TA505 Threat Group That Continues to Attack the Financial Sector. Retrieved July 14, 2022.
  3. Visa Public. (2019, February). FIN6 Cybercrime Group Expands Threat to eCommerce Merchants. Retrieved September 16, 2019.
  4. Hiroaki, H. and Lu, L. (2019, June 12). Shifting Tactics: Breaking Down TA505 Group’s Use of HTML, RATs and Other Techniques in Latest Campaigns. Retrieved May 29, 2020.
  5. Schwarz, D. et al. (2019, October 16). TA505 Distributes New SDBbot Remote Access Trojan with Get2 Downloader. Retrieved May 29, 2020.
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