Malwarebytes says it's a trojan
(https://avidemux.org/smif/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FXoYGQOA.png&hash=5fb5bc2ebd01040d1f9bc19fac6b5c1800a83837)
Nice screen shot, not showing any relevant parts! Text report please and where did you download it from?
not much in the logs, it was quite awhile ago but i think i got it from cnet
Malwarebytes Anti-Malware 1.75.0.1300
www.malwarebytes.org
Database version: v2013.04.23.03
Windows 7 Service Pack 1 x64 NTFS
Internet Explorer 10.0.9200.16540
andrew :: ANDREW-PC [administrator]
4/23/2013 10:19:58 AM
mbam-log-2013-04-23 (10-19-58).txt
Scan type: Quick scan
Scan options enabled: Memory | Startup | Registry | File System | Heuristics/Extra | Heuristics/Shuriken | PUP | PUM
Scan options disabled: P2P
Objects scanned: 217194
Time elapsed: 7 minute(s), 5 second(s)
Memory Processes Detected: 0
(No malicious items detected)
Memory Modules Detected: 0
(No malicious items detected)
Registry Keys Detected: 0
(No malicious items detected)
Registry Values Detected: 0
(No malicious items detected)
Registry Data Items Detected: 0
(No malicious items detected)
Folders Detected: 0
(No malicious items detected)
Files Detected: 1
C:\Users\andrew\Downloads\avidemux_2.6.1_win64.exe (Trojan.Agent.ED) -> Quarantined and deleted successfully.
(end)
Not from here, and reasonable old to. If you want earlier versions: http://avidemux-mswin.sourceforge.net/