Content Injection

Adversaries may gain access and continuously communicate with victims by injecting malicious content into systems through online network traffic. Rather than luring victims to malicious payloads hosted on a compromised website (i.e., Drive-by Target followed by Drive-by Compromise), adversaries may initially access victims through compromised data-transfer channels where they can manipulate traffic and/or inject their own content. These compromised online network channels may also be used to deliver additional payloads (i.e., Ingress Tool Transfer) and other data to already compromised systems.¹ Adversaries may inject content to victim systems in various ways, including: * From the middle, where the adversary is in-between legitimate online client-server communications (**Note:** this is similar but distinct from Adversary-in-the-Middle, which describes AiTM activity solely within an enterprise environment)² * From the side, where malicious content is injected and races to the client as a fake response to requests of a legitimate online server³ Content injection is often the result of compromised upstream communication channels, for example at the level of an internet service provider (ISP) as is the case with "lawful interception."⁴⁵⁶

1. ESET MoustachedBouncer
2. Kaspersky Encyclopedia MiTM
3. Kaspersky ManOnTheSide
4. Kaspersky ManOnTheSide
5. ESET MoustachedBouncer
6. EFF China GitHub Attack

Groups using this technique

Claims

No public claim points at this technique yet.

Auto-ingested and not human-reviewed; confidence and validity read by citation.