Netskope Threat Labs

Clsfk

ATP Sandbox Adv. HeuristicsAV

Clsfk is a detection for click fraud malware that generates fake ad clicks to generate revenue for cyberattackers.

First seen
March 2023
Last seen
October 2026
Alert Name
Document-HTML.Phishing.Clsfk
GT:JS.Clsfk.1.00E25C27
GT:JS.Clsfk.1.0247C304
GT:JS.Clsfk.1.03CBEC74
GT:JS.Clsfk.1.03FFEBB2
GT:JS.Clsfk.1.041211EE
GT:JS.Clsfk.1.04828B6A
GT:JS.Clsfk.1.056C8BBE
GT:JS.Clsfk.1.071D6191
GT:JS.Clsfk.1.0773B460