Sigma critical test sigma
CobaltStrike Named Pipe Pattern Regex
Detects the creation of a named pipe matching a pattern used by CobaltStrike Malleable C2 profiles
Detection Logic
{
"selection": [
{
"PipeName
| re": "\\\\mojo\\.5688\\.8052\\.(?:183894939787088877
| 35780273329370473)[0-9a-f]{2}"
},
{
"PipeName
| re": "\\\\wkssvc_?[0-9a-f]{2}"
},
{
"PipeName
| re": "\\\\ntsvcs[0-9a-f]{2}"
},
{
"PipeName
| re": "\\\\DserNamePipe[0-9a-f]{2}"
},
{
"PipeName
| re": "\\\\SearchTextHarvester[0-9a-f]{2}"
},
{
"PipeName
| re": "\\\\mypipe-(?:f
| h)[0-9a-f]{2}"
},
{
"PipeName
| re": "\\\\windows\\.update\\.manager[0-9a-f]{2,3}"
},
{
"PipeName
| re": "\\\\ntsvcs_[0-9a-f]{2}"
},
{
"PipeName
| re": "\\\\scerpc_?[0-9a-f]{2}"
},
{
"PipeName
| re": "\\\\PGMessagePipe[0-9a-f]{2}"
},
{
"PipeName
| re": "\\\\MsFteWds[0-9a-f]{2}"
},
{
"PipeName
| re": "\\\\f4c3[0-9a-f]{2}"
},
{
"PipeName
| re": "\\\\fullduplex_[0-9a-f]{2}"
},
{
"PipeName
| re": "\\\\msrpc_[0-9a-f]{4}"
},
{
"PipeName
| re": "\\\\win\\\\msrpc_[0-9a-f]{2}"
},
{
"PipeName
| re": "\\\\f53f[0-9a-f]{2}$"
},
{
"PipeName
| re": "\\\\rpc_[0-9a-f]{2}"
},
{
"PipeName
| re": "\\\\spoolss_[0-9a-f]{2}"
},
{
"PipeName
| re": "\\\\Winsock2\\\\CatalogChangeListener-[0-9a-f]{3}-0,"
}
],
"condition": "selection"
} False Positives
- ⚠ Unknown
Field Validations
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