![]() ![]() Irrespective of the delivery mechanism, the payload must be transferred to the victim endpoint. For better defense evasion, the attacker may encode the payload so it cannot be detected by most antivirus solutions. This file is stored in the default screensaver folder as a defense evasion technique. The attacker in this scenario masks the screensaver file by saving it with a name that does not raise suspicion. Screensavers are stored in the C:\Windows\System32\ folder of Windows systems by default. One notable feature of this technique is it does not require admin privileges for its command execution. This is because files from public websites may include malware that can negatively impact your system. The best practice for using screensavers on Windows endpoints is to create one yourself and not to download it from public websites. This is true since Windows screensavers are executable files with the. Threat actors are known to exploit the screensaver feature on Windows systems as a means of persistence. Screensaver is a feature on operating systems that lets users display a message or graphic animation after a certain amount of idle time has elapsed.
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