Since this ID represents a specific object, you need to map it to the human-readable name.

The scfilter prefix suggests a security content filter or stream classifier filter. Many web proxies, email gateways, and CDNs (like Cloudflare, Barracuda, or Proofpoint) use such filters to inspect traffic. The cid part likely stands for classification ID or content ID.

In rule-based filtering engines (e.g., SquidGuard, DansGuardian, custom DPI modules), an scfilter directive with a CID tells the engine to apply a rule set to traffic matching that content pattern.

Example rule:

scfilter cid87d25e32ac0d4ef0b1e0502c6b7dfb77 
    action = block
    log = yes
    description = "Block specific content hash"

If you have more details about where you encountered "scfilter cid87d25e32ac0d4ef0b1e0502c6b7dfb77", it could provide more insights. Is it related to a specific software, a web service, or perhaps a technical challenge you're facing?

Your thoughts and additional context could help unravel the mystery behind this intriguing string.

Here’s a solid, technical write‑up for the Suricata scfilter rule with the CID 87d25e32ac0d4ef0b1e0502c6b7dfb77.

Not necessarily. Most of the time, this is just an internal tracking ID. However, if you see it in an unexpected place (e.g., a suspicious email or a URL you don’t recognize), it could indicate: