Skip to main content

Glossary

Infostealer

Malware specifically designed to harvest credentials, session cookies, cryptocurrency wallets, and other sensitive data from an infected device and send it back to the attacker, typically to enable follow-on access or resale. Infostealer logs traded on criminal marketplaces are a major source of the initial access used in ransomware intrusions.

Recent coverage mentioning Infostealer

Infostealers Target Anthropic Claude Users via Session Theft
HIGH
Data Breach

Infostealers Target Anthropic Claude Users via Session Theft

Threat actors are employing various infostealers to compromise Anthropic Claude user accounts via session theft, posing significant risks.

Runtime Rebel Intel
4 min read · Sep 1, 2026
WordlistLoader Evades Detection, Delivers Amatera Infostealer
HIGH
Malware

WordlistLoader Evades Detection, Delivers Amatera Infostealer

WordlistLoader uses a novel text-based obfuscation to bypass security, deploying the Amatera infostealer in ClickFix-style campaigns, posing a significant threat.

Runtime Rebel Intel
4 min read · Aug 25, 2026
HIGH
Supply Chain

Critical: Rust `arrayref` Crate Poisoned with Infostealer Malware

Hackers compromised `arrayref`, `append-only-vec`, and `internment` Rust crates to inject infostealer malware, impacting developers and downstream projects.

Runtime Rebel Intel
4 min read · Aug 21, 2026
ClickFix Attacks Deliver macOS Stealer Targeting Crypto
MEDIUM
Malware

ClickFix Attacks Deliver macOS Stealer Targeting Crypto

ClickFix social engineering campaigns target macOS users with Go-based infostealers designed to drain cryptocurrency wallets and credentials.

Runtime Rebel Intel
3 min read · Aug 10, 2026
Critical npm Supply Chain Attack Delivers Cross-Platform RAT/Infostealer
HIGH
Supply Chain

Critical npm Supply Chain Attack Delivers Cross-Platform RAT/Infostealer

Critical npm supply chain attack involving nearly 800 malicious packages delivers WEL1DROPPER RAT and infostealer to Windows, macOS, and Linux users.

Runtime Rebel Intel
5 min read · Aug 8, 2026
HIGH
Malware

ClickFix Attack Deploys macOS Infostealer for Crypto Theft

The ClickFix attack leverages a Go-based macOS infostealer to pilfer cryptocurrency, browser data, and Apple Keychain credentials via a Bash script loader.

Runtime Rebel Intel
5 min read · Aug 7, 2026

Advertisement

← All 285 glossary terms