Environment
- Carbon Black Cloud Console: All Versions
- Audit and Remediation (was CB LiveOps)
- Endpoint Standard (was CB Defense)
- Enterprise EDR (was CB ThreatHunter)
- Managed Detection (was CB ThreatSight)
- Apple macOS: All Supported Versions
Question
What does it mean when the hash for an application shows as a long chain of zeroes and ones (010101...01), or when this message is seen for a process shown as UNKNOWN?
Origin: The file with hash 0101010101010101010101010101010101010101010101010101010101010101 was detected by Carbon Black.
Answer
The 0101010101010101010101010101010101010101010101010101010101010101 'synthetic' hash is expected if
- The process is spawned by a processes that is part of a 'Performs any operation > Bypass' Permissions rule
Example
A invokes B, B exhibits behavior
When A is "bypass any operation", behavior of B is reported with the 010101...01 hash
- When such child processes exhibit network or API behavior, the event actor process will be reported with the 'synthetic' hash
Example
A belongs to a 'Performs any operation > Bypass' rule
A invokes B, B makes a network connection or API call
A will be reported with the 010101...01 hash
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