Hi,
Before the log for "Bogus chunk detected", you should see some details about the source stream. For example, in the log entry below:
User agent `EvoStream Media Server (http://www.evostream.com)` on connection (Far: 66.222.44.11:55555; Near: 66.222.44.3:1935) CTCP(196) <-> TCP(230) <-> [IR(231)]
The "Far" side has an IP of 66.222.44.11 and a port of 55555. This could identify your source stream.
In another example below:
Stream INR(137) with name `ICC` from protocol IR(216) registered to origin application `evostreamms`
The stream source, which is type "INR" or Inbound Network RTMP, has a stream ID of 137.
Cheers,
Don