Grenam
Aliases: Renamer, gnamer
- Malware type
- virus
- Family
- Malware family
- Related IoCs
- 236 (228 malicious)
- Last IoC activity
- 2026-10-18 01:19:38
- Profile updated
- 2026-07-07 15:04:30
Context
A malware that modifies every JPG file found on a computer by adding a string in its bottom corner spelling out 'I am Sorry'. Grenam is a companion virus, which is a form of file infection. It infects by prepending the letter 'g' in front of host files and placing itself with the original name of the host.
Detection coverage
- 1 YARA rules
Detection rules
- DITEKSHEN_MALWARE_Win_Renamer (yara-rule)
Reports & references
- malpedia.caad.fkie.fraunhofer.de — Win.Grenam (report)
- youtube.com — Watch (report)