Incidents

Koobface on the tweet

We are currently witnessing a new wave of Koobface messages flooding twitter. The message that is mostly used right now is: “My home video 🙂 <URL>”

The link in infected tweets points to a site with a little javascript.

The script calls a php-script on a server which uses an ID to return an IP address leading to the video site. This means the IP address is different for every request.

Interestingly, the guys behind this attack are clearly out to maximize their ROI: if you’re using Mac or Linux, you end up getting redirected to an adult site.

Twitter is saying it may block infected accounts. We’re doing our part as well – our users are already protected from the malicious file:

And we’ve also added protection against the malicious tweet itself, which will be detected as Net-Worm.Win32.Koobface.aqy as updates are rolled out to our users.

Koobface on the tweet

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Reports

GhostEmperor: From ProxyLogon to kernel mode

While investigating a recent rise of attacks against Exchange servers, we noticed a recurring cluster of activity that appeared in several distinct compromised networks. With a long-standing operation, high profile victims, advanced toolset and no affinity to a known threat actor, we decided to dub the cluster GhostEmperor.

APT trends report Q2 2021

This is our latest summary of advanced persistent threat (APT) activity, focusing on significant events that we observed during Q2 2021: attacks against Microsoft Exchange servers, APT29 and APT31 activities, targeting campaigns, etc.

LuminousMoth APT: Sweeping attacks for the chosen few

We recently came across unusual APT activity that was detected in high volumes, albeit most likely aimed at a few targets of interest. Further analysis revealed that the actor, which we dubbed LuminousMoth, shows an affinity to the HoneyMyte group, otherwise known as Mustang Panda.

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