aggr-inject is a proof-of-concept implementation of the A-MPDU subframe injection attack, which allows an attacker to inject raw Wi-Fi frames into unencrypted networks remotely. The PoC exploits a vulnerability in the 802.11n frame aggregation mechanism and can be performed against almost any modern Wi-Fi chipset, given that the target is connected to an open network. Results from this research were published in a paper and presented at the ACM WiSec 2015 security conference. Here, each subframe is prepended with a delimiter in order to indicate its starting position and length inside the aggregated frame. When the receiver receives the aggregate, the delimiters are removed, and each subframe is deaggregated and forwarded to the kernel for further processing.