Lambda Errors
AWS Lambda is a very popular service where development operations occur native to the cloud without the need to deploy expensive servers or equipment. Because of this environment, it can be a prime target for attackers to take advantage of. As malware relies on a program of some sort, code will need to be run in order to carry out malicious operations.
Errors can be caused by not only code compilation failures, but due to accounts and privileges. These scenarios have the potential to indicate an unauthorized user performing action in an account. It's always important to review the code environment on a routine basis to make sure the proper programs are running by the correct users. More information about errors can be found here:
https://docs.aws.amazon.com/lambda/latest/dg/invocation-retries.html