The Evolution of Trickbot

From the malware lab of S2 Grupo we have been monitoring the movements of a Trojan known as Trickbot. Its relationship with Dyre, another older Trojan with which it shares many design features, and the speed at which it evolves, has captured our interest ever since we saw the first samples.

This malware is usually categorized as a banking Trojan since it has so far been very oriented towards data theft relating to banking, but its modular design allows to expand its capabilities at any time so as to perform any kind of extra action.

During its early versions, some very good analyses were already done such as those of @hasherezade in the malwarebytes blog and Xiaopeng Zhang in that of Fortinet. But the development of Trickbot has continued during the last few months, reaching version 17 in less than 6 months. So we thought that it would be interesting to check the changes it has undergone during its evolution and to delve deeper into some of its most curious techniques when performing different actions.

Along with these factors, a recent increase in its infection targets and campaigns has motivated us to devote extra time and effort to a deeper analysis of this threat.

We have compiled the result of this analysis in the report that we have attached below and which we hope will be useful to more than one of you.

– Download report –

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