Incidents

Hot Fail On SexBoosters

Over the last couple of days we’ve been noticing a few pharmacy spam mails which are a bit different. Somebody seems to have replaced the original graphical content with an alert highlighting that such messages are malicious.

So far we have counted three (ab)used image hosting services for this spam:

  1. imageshack.us
  2. imgur.com
  3. myimg.de

A quick analysis of these showed that #1 currently serves all the replaced images, #2 serves all original spammers images and #3 seems to have removed the offensive content immediately, good work!

At the moment, we don’t have any further information about the source/background of the warning replacements – this gives us plenty of opportunity to use our imaginations when thinking about what’s actually going on. A few of the key words and concepts we’re considering are: white hats, rival spammers, compromised hosting service(s). Not an exhaustive list, but more of a launch pad for further theories and research!

Hot Fail On SexBoosters

Your email address will not be published. Required fields are marked *

 

Reports

The leap of a Cycldek-related threat actor

The investigation described in this article started with one such file which caught our attention due to the various improvements it brought to this well-known infection vector.

Lazarus targets defense industry with ThreatNeedle

In mid-2020, we realized that Lazarus was launching attacks on the defense industry using the ThreatNeedle cluster, an advanced malware cluster of Manuscrypt (a.k.a. NukeSped). While investigating this activity, we were able to observe the complete life cycle of an attack, uncovering more technical details and links to the group’s other campaigns.

Sunburst backdoor – code overlaps with Kazuar

While looking at the Sunburst backdoor, we discovered several features that overlap with a previously identified backdoor known as Kazuar. Our observations shows that Kazuar was used together with Turla tools during multiple breaches in past years.

Subscribe to our weekly e-mails

The hottest research right in your inbox