ModStealer Malware Threatens Cryptocurrency Users on Multiple Platforms

Key Points:

  • ModStealer malware targets users across OS platforms, stealing crypto keys.
  • Mosyle identifies undetected malware in fake recruitment ads.
  • Security experts advise using hardware wallets and verifying transaction sources.

ModStealer malware targets cryptocurrency users, stealing wallet keys and credentials on macOS, Windows, and Linux via fake Web3 ads, security firm Mosyle reports.

The undetected malware poses risks for crypto ecosystems, prompting calls for enhanced security measures among developers to protect wallet data and safeguard digital assets.

ModStealer’s Sophisticated Tactics and Detection Evasion

ModStealer was first reported by Mosyle, focusing on security breaches affecting cryptocurrency users. It evades traditional antivirus solutions and specifically targets wallet extensions in Safari and Chromium browsers, aiming at developers involved in Web3 initiatives.

This malware remains undetected for nearly a month after its upload to VirusTotal. Notably, it depends on fake recruitment campaigns to lure targets and utilizes Finnish servers, occasionally masking its origins through German infrastructure, increasing its reach and complexity.

“ModStealer evades detection by mainstream antivirus solutions and poses significant risks to the broader digital asset ecosystem,” said Shan Zhang, CISO of SlowMist.

Current Crypto Market Trends and Expert Countermeasures

Did you know? ModStealer’s ability to remain undetected highlights parallels to past malware campaigns, such as RedLine, ensuring its persistence in targeting digital assets and developers.

Bitcoin (BTC) currently trades at $115,008.62 with a market cap of $2.29 trillion, representing a 57.15% dominance, according to CoinMarketCap. Despite a 0.87% rise over 24 hours, BTC has seen a 4.68% decline in the past 30 days, with 19,919,859 coins circulating.

bitcoin-daily-chart-3291

Bitcoin(BTC), daily chart, screenshot on CoinMarketCap at 11:44 UTC on September 12, 2025. Source: CoinMarketCap

Insights from Coincu’s research indicate the necessity for advanced anomaly detection to prevent future threats targeting developer toolchains. Enhanced hardware wallet usage and OS-level monitoring form part of the proposed solutions to counteract such malware campaigns effectively.

Source: https://coincu.com/scam-alert/modstealer-malware-threat-crypto-users/