If this arrived in an email you weren't expecting—even if it looks like it's from a known contact—it is almost certainly malicious.
If you found it in a folder like AppData\Local\Temp , it was likely downloaded by another program (a "dropper") already on your computer. 55623.rar
To understand what you’re looking at, think back to how this file appeared: If this arrived in an email you weren't
Once you extract the .rar and run the executable inside, the malware typically scans your computer for browser passwords, crypto wallets, and session cookies to hijack your accounts. 2. Identifying the Source It will scan the archive against 70+ different
It’s harder for security software to block a filename that changes every hour.
Go to VirusTotal.com and upload the file. It will scan the archive against 70+ different antivirus engines. If more than 2 or 3 flag it, delete it immediately.
Where exactly did you , and did your antivirus give you any specific alerts when you found it?