ChainBleedv0.1 · open intel
← back to feed·MULTILOGIC2021-11-30 · 4y ago
Incident · DEFILLAMA

MonoX

Swap Function Exploit
Estimated loss
$31.40M
VERDICT —UNRATED
Verdict pending. Auto-ingested incidents are reviewed before a public verdict is rendered.
▰ METHOD
Swap Function Exploit
LOGICBYTECODE CATCHABLEAI SCANNABLE
Root cause

Root-cause analysis not yet published. The incident description below contains all currently available signal — review the attack transaction directly for definitive forensics.

▰ PROOF OF CONCEPT
DEFIHACKLABS
src/test/2021-11/Mono_exp.sol
view forked test on github ↗

Reproducible Foundry test fork from SunWeb3Sec/DeFiHackLabs. Clone the repo, run forge test against the file path above, and replay the exploit against a mainnet fork at the historical block. Use for reproduction only — not for live targets.

Forensic narrative

Classification: Protocol Logic. Technique: Swap Function Exploit. Target type: DeFi Protocol. Affected chains: Ethereum, Polygon. Implementation language: Solidity.

Sourced from
DefiLlama Hacks dataset · api.llama.fi/hacks
Technical record
chain
multichain
protocol
MonoX
bug_class
logic
date_occurred
2021-11-30
loss_usd
$31,400,000
classification
Protocol Logic
technique
Swap Function Exploit
target_type
DeFi Protocol
language
Solidity
source_id
dl:948
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