Norton scan removed my old archives

Risks in compressed file "03.rar"
 Type: Compressed
 Risk: High (High Stealth, High Removal, High Performance, High Privacy)
 Categories: Virus
 Status: Fully Resolved
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 1 Infected File
[madcow.exe] inside of [ICQ.RAR] inside of [D:\Backup_e\old\03.rar] - Fully Resolved

Why did it remove complete rar (~2GB) archive that is more than 20 years old, without a trace, no quarantine, no trashcan, file is gone and I cant restore it?!