Ultracleaner.exe -
If you have the file, calculate its MD5 or SHA-256 hash. You can then search for these hashes on VirusTotal to see if security vendors have flagged it.
Based on the name "Ultracleaner," such files usually fall into two categories: Ultracleaner.exe
If this is related to a specific (like a "lost media" or horror story), search for the term on forums like Reddit (r/ARG) or Creepypasta Wiki to see if it is a fictional narrative device rather than a real program. If you have the file, calculate its MD5 or SHA-256 hash
If you are physically "putting together" a research paper on a suspicious file: on your primary computer. If you have the file

