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The number of cyberattacks that use malicious HTML attachments has doubled since 2022, according to reports.

These cyberattacks are also increasingly becoming more unique compared to previous variants.

Researchers have observed a significant increase in the use of malicious HTML attachments in email campaigns by cybercriminals.
The use of HTML attachments has become popular among cybercriminals due to their ability to bypass traditional email security systems that rely on signature-based detection.
On March 7, there were 672,145 malicious HTML artifacts detected in total, comprising 181,176 different items.
This means that 27% of the detected files were unique, and the rest were repeat or mass deployments of those files.
However, on March 23, 85% of the total 475,938 malicious HTML artifacts were unique, which means that almost every single attack was different.
HTML attachments often contain obfuscated JavaScript that is used to download and execute malicious code on the victim's system.
Cybercriminals use various social engineering tactics to lure victims into opening these malicious attachments, including pretending to be from legitimate organizations or offering fake job opportunities.
To prevent falling victim to these types of attacks, individuals and organizations are advised to be cautious when opening email attachments, keep their antivirus software up to date, and enable multi-factor authentication for their email accounts.

Number of HTML cyberattacks increases