I'd definitely run a virus scan to be sure... If you don't have one just install a Trial version and remove it again after a week.

Noted: I've gone with BitDefender from the Map App Store. Will report back results.

EDIT: welp, BitDefender found nothing, all clear.

Maybe give Malwarebytes Anti-Malware for Mac [1] a try? I've used their Windows products for a while now.

[1] https://www.malwarebytes.org/antimalware/mac/

Avira is what we use (at a very security-conscious org), and it's been unobtrusive.

(reply to noondip): if anyones got a better suggestion I'd love to hear it :)

Back when Apple still made Mac OS X Server as a separate operating system, they included ClamAV¹ to scan for malware in mail. They don’t include it anymore, but ClamXav² (been around since 2004³) is a nice GUI for ClamAV that I’ve been using for a while now.

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¹ — https://en.wikipedia.org/wiki/Clam_AntiVirus#Mac_OS_X

² — http://clamxav.com/index.html

³ — http://clamxav.com/birthday.html

I run a private mail server and swear by ClamAV to help reduce noise and pollution that accumulates and spreads through my server, but I don't think I've ever had any luck with it being a good front line defense against up-and-coming malware, whether it targets Windows or Mac. I don't think I would recommend it as a primary malware scanner for a Mac, or Windows.

The same BitDefender which was hacked a few months ago? http://securityaffairs.co/wordpress/39028/cyber-crime/bitdef...