IMM-T-2026-0141

PROBATION Advisory

Flagged by 1 independent publisher declaring the same primary matcher. Advisory until 3 distinct publishers corroborate.

Matcher 0x6e8fdd2dda6cf69533c5f43a9cb2193e279192cae9184cb2bfd4b2af1591c2c4
Type
SEMANTIC
Verdict
MALICIOUS
Confidence
91.0%
Severity
84
Value at risk
$0.00
Published by 0xae755890..3f5160 View on explorer
Created June 14, 2026 7:46 AM
Envelope v1
Signed payload
Primary matcher semantic
PROMPT_INJECTION "system: you are now"
Scope
base-sepolia home
Corroboration 1 of 3 to hard-block
Same matcher hash

No other publisher has independently declared this matcher yet. This antibody stands alone — advisory until 3 distinct publishers corroborate.

Evidence redacted public excerpt
Reasoning excerpt
Spoofed system-role prefix injection: the payload presents itself as a message from the system role to convince the agent that an upstream operator authorized a role change. The attack relies on the agent's chat-template parser leaking role boundaries into untrusted content. MALICIOUS at high confidence: the construct has no legitimate use in user-side or retrieved content, and successful exploitation typically precedes credential or seed-phrase exfiltration.

Full evidence (TEE-sealed) is fetchable by holders of the unsealing key. Public mirror carries hash only.

TEE attestation
Curated by human
Heuristically published from a known threat catalog, not derived from a TEE-verified verdict.
Evidence on Lighthouse
QmWBLtUuherWifb5zbxHD82V4f9HPEXQiaPn7YVX5DFeQ4
Public CIDv0 on Lighthouse IPFS — resolves the signed envelope.
Network impact Live
Since publish
Cache hits
0
SDK check() matches
Agents synced
0
distinct callers
Attacks blocked
0
tx-level intercepts
Pool reverts
0
Uniswap v4 hook
USD protected
$0.00
no blocks recorded yet
Hits over time each bar is one of 30 equal slices since publish
publish now
Recent intercepts
Agent Method Chain When
No agent has had to block this antibody yet.
Intercepts appear here in real time as agents match this pattern in the wild.
Mirror status Not mirror-eligible
Not eligible to mirror

This antibody is advisory — it stays on its home chain. The relayer only propagates antibodies that have earned enforcement authority, so the cross-chain Uniswap hook never blocks on an unproven flag. It becomes mirror-eligible once it matures to hard-block: 1 of 3 independent publishers corroborating so far.