.OSA File
.osa is W32/Sober-AD data
| Features | Description | 
|---|---|
| File Extension | .osa | 
| Format | N/A | 
| Created by | AVAST Software a.s. | 
| Category | Dangerous and malicious | 
.osa is W32/Sober-AD data
| Features | Description | 
|---|---|
| File Extension | .osa | 
| Format | N/A | 
| Created by | AVAST Software a.s. | 
| Category | Dangerous and malicious | 
What's on this Page
The osa file extension is reported to be used by W32/Sober-AD mass-mailing worm for the Windows platform. Most likely used for one of the files generated the the worm.
Should be purged from system using some security software.