Hackers Hiding Malware behind Captcha to Bypass Secure Email Gateways

From gbhackers.com


Hackers using Captcha to hide the presence of malware and to evade email security gateways. By using this technique attackers show that email is sent human and evades detection.

Attackers use various social engineering methods to trick the users to believe the emails is from a legitimate source, here the email’s are from a compromised account at @avis.ne.jp.

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