The threat to information is greater than ever, with data breaches, phishing attacks, and other forms of information theft like point-of-sale malware and ATM hacks becoming all too common in today's threat landscape. Information-stealing trojans are in the same category of threats that deliver a steady stream of risk to data and can lead to significant financial loss.

Qakbot and Emotet are information stealers that have been showing renewed activity in recent months. These malware families are technically different, but they share many similarities in behavior. They both have the ultimate goal of stealing online banking credentials that malware operators can then use to steal money from online banking accounts. They can also steal other sensitive information using techniques like keylogging.

Figure 1. Qakbot and Emotet monthly machine encounters show an upward trend. This data doesn’t include Qakbot and Emotet variants blocked by automation and cloud rules.

Even though these malware families are typically known to target individual online banking users, more and more enterprises, small and medium businesses, and other organizations have been affected by indiscriminate infections.

Figure 2. Breakdown of Qakbot and Emotet machine encounters

Recent variants of these malware families have spreading capabilities, which can increase the chances of multiple infections in corporate networks. They can also be spread by other malware during the lateral movement stage of a cyberattack.

Typical Qakbot and Emotet kill chain

Over the years, the cybercriminals behind Qakbot and Emotet have improved the code behind their malware. They have evolved to evade detection, stay under the radar longer, and increase the chances of spreading to other potential victims.
We mapped some of the common behaviors we’ve seen in Qakbot and Emotet variants and see a lot of similarities.

Figure 3. Qakbot and Emotet attack kill chain. Note that some Qakbot and Emotet variants might not exhibit all of the behaviors above and might be capable of unique routines.

Because of similarities in behavior, Qakbot and Emotet can be mitigated by similar security measures.

Read more: Mitigating and eliminating info-stealing Qakbot and Emotet in corporate networks Windows Security blog