Security experts are warning internet users to update malware and spam filters after a spate of attacks using social engineering around the Easter holidays to distribute malware.
McAfee has reported a wave of emails this morning which purport to be Easter cards containing an animated greeting.
The download is instead a Trojan which contains key-logging software and backdoor access to return data and allow additional malware to be deployed.
"Don't click on links in spam messages and be extra suspicious of messages like this Easter greeting," McAfee said in a blog post.
"If you think it is legitimate, then double-check by sending the supposed sender a separate email asking if they have sent you a greeting."
Meanwhile Symantec has released an update to its spam filters after detecting a burst of Easter-related spam offering goods for so-called limited edition sales and services aimed at the holiday, often containing the headline 'Easter Bunny'.
"We advise you to be cautious when handling unsolicited or unexpected emails, especially during this Easter season," said Symantec's security team.
"Updating anti-spam signatures regularly protects your personal information from being compromised."
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