int0x09B3

int0x09B3 is a term commonly associated with a specific type of malware, often referred to as a "fake antivirus" or "scareware." The name originates from the hexadecimal interrupt code (0x09B3) that appears in the malware's behavior, particularly in its error messages or system alerts. This type of malware typically exploits user anxiety by displaying fake security warnings, claiming that the victim's system is infected with numerous threats. The alerts often mimic legitimate system notifications, urging the user to purchase a bogus antivirus program or software tool to "remove" the supposed infections.

The malware often spreads through deceptive means, such as fake software updates, malicious downloads, or infected advertisements. Once installed, it may disable legitimate security software, modify system settings, or create false scan results to convince the user of an infected system. Users are frequently tricked into providing payment information or personal details, which can lead to financial loss or identity theft.

int0x09B3 is not a standalone virus but rather a behavior or detection name used by security software to identify specific variants of scareware. Different antivirus programs may classify similar malware under various names, such as "FakeRean," "Vobfus," or "Winwebsec." To protect against such threats, users are advised to keep their systems updated, avoid downloading software from untrusted sources, and use reputable antivirus programs. Regularly scanning the system with updated security software and exercising caution when encountering unexpected alerts can help mitigate the risk of falling victim to int0x09B3 or similar malware.