Astera.fi
Last changed 2026-10-10 · Score recalculated — Rescored under Scoring v2, the published formula (avoid.net/scoring): 38 → 56. Problems weighed by who is responsible: concerns that are not fraud −9.6, incidents the subject suffered −3.2, problems around the subject, caused by others −2.4; legitimacy credit long-running +6. Version history →
Why this score
| Every page starts at | 65 |
| Concerns that are not fraud | -9.6 |
| Incidents it suffered (e.g. hacks) | -3.2 |
| Problems around it, caused by others | -2.4 |
| Long-running | +6 |
| Sum | 56 |
Score: 56/100 (kept between 0 and 100)
How scoring works →Summary
Astera.fi is a DeFi credit facility and lending protocol operating on Ethereum's Linea Layer-2 network, issuing the asUSD stablecoin through both over- and under-collateralized mechanisms. On October 9, 2025, the protocol suffered a flash loan exploit via a liquidity index inflation attack that drained approximately $821,856–$880,000 across three lending pools. The protocol has been flagged by ZachXBT and market data indicates near-zero trading activity for asUSD, with the token appearing to have effectively ceased normal operation post-exploit.
Connected Entities
7 entities · 60 linked investigations- Velocore DEX→mentioned with→Ethereum(80%)
- Linea→mentioned with→Ethereum(80%)
- ZachXBT→mentioned with→Ethereum(70%)
- Linea→mentioned with→Binance(60%)
- Astera.fi→mentioned with→Ethereum(80%)
- Astera.fi→mentioned with→Tether(60%)
- Astera.fi→mentioned with→Binance(70%)
- ZachXBT→mentioned with→Binance(60%)
- Astera.fi→mentioned with→Linea(70%)
- Astera.fi→mentioned with→ZachXBT(70%)
- + 4 more
Timeline(6 events)
2023
Astera.fi Token Generation Event (TGE) occurred, with the protocol alleged to have raised approximately $5 million. Exact date within early 2023 is unverified.
2 June 2024
Velocore DEX on Linea exploited for approximately $6.8 million; Linea sequencer halted in response, establishing precedent for centralized chain-level intervention on Linea.
9 October 2025
Astera lending protocol exploited via flash loan and liquidity index inflation attack on Linea. Losses estimated between $821,856 and $880,000 across three minipools (asUSD, LINEA, WETH). Linea security team and Spearbit engaged in incident response.
October 2025
October 2025 DeFi Rekt Report documents Astera exploit as the fifth-largest of nine exploits totaling $38.6 million in losses for the month.
November 2025
asUSD trading volume reported near zero; CoinGecko data indicates token stopped trading on all listed exchanges. Approximate date based on available market data.
May 2026
asUSD market capitalization at approximately $142,000–$170,000 with near-zero 24-hour trading volume. Protocol operational status remains unclear; community reports reference a treasury-led collateral recovery process.
Decision Log
- slot 455364833 · hash 5MForvapGRwYqM5eXRbYNmyGecV1Ph5si5nJ2E4x3gno
- slot 422983081 · hash 83PhuGH9dTQKAQFDMga1vT8RjfesJ5BBWeQCdhjF7dwP
This investigation is cryptographically anchored to the Solana blockchain (2 decisions). 7 of 11 cited source URLs have an Internet Archive snapshot.
model: claude-sonnet-4-6
generated: 5/4/2026, 2:54:20 AM
last updated: 10/10/2026, 6:45:03 PM
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