Quick practice
Question 1 of 4
A company's file server shows normal operation during business hours. However, every Friday at 5:00 PM, critical database files are automatically encrypted, and a ransom message appears. Analysis reveals that no network intrusion occurred, and the malicious code was embedded within legitimate software installed months ago.
This attack pattern MOST accurately represents:
A
Polymorphic virus infection
B
Zero-day worm exploitation
C
Advanced persistent threat (APT)
D
Logic bomb with ransomware payload
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