Atomic
Atomic Stealer is a macOS-focused information stealer, also described as a malware-as-a-service (MaaS) infostealer linked in the reporting to Russian cybercriminals. The content consistently places it among prominent stealer families such as Lumma, Vidar, Poseidon, Odyssey, and Banshee, and identifies it as one of the leading infostealers targeting Apple macOS systems.
Its core capability is theft of data from compromised hosts, including browser cookies and session cookies, which can be used for account takeover and MFA bypass via session replay. The content also associates Atomic with broader infostealer behavior such as harvesting credentials and other sensitive information from infected systems. In multiple references, Atomic is specifically described as a macOS info stealer.
Observed delivery vectors in the content include malicious GitHub repositories, fake installer repositories themed around OpenClaw, malicious ads, free or cracked software, and ClickFix-style social engineering. One cited infection chain serves Apple macOS users a booby-trapped disk image file named "Launcher_v1.94.dmg" that drops Atomic. Another campaign used fake Google Meet and related lures to deliver Atomic on macOS via a disk image. Trend Micro also reported threat actors using 39 malicious skills across ClawHub and SkillsMP to distribute the Atomic macOS infostealer.
The malware is mentioned in campaigns targeting users seeking AI tooling such as OpenClaw, and in AI-assisted phishing/scam ecosystems where ClickFix lures lead to installation of malware like Atomic. The reporting also notes Atomic being distributed alongside or in parallel with other stealers such as Vidar and GhostSocks.
High-confidence indicators and artifacts directly mentioned in the content include the malware family name Atomic/ATOMIC, the booby-trapped DMG file "Launcher_v1.94.dmg," and its use in fake OpenClaw installer repositories, ClawHub/SkillsMP malicious skills, malicious ads, cracked software, and ClickFix fake Google Meet delivery chains.
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Groups observed using it
1 distinct threat actor attributed by public researchers. Open in Mallory to see the full evidence chain and overlapping campaigns.
"...distribute... information stealers, such as Atomic (AMOS), Lumma, Rhadamanthys... and Vidar..."
Techniques & procedures
9 distinct techniques documented for this family, organized by ATT&CK tactic.
Resource Development
1 techniqueДоставка. Фишинг, поддельный установщик, SEO-poisoning. Пользователь запускает малварь на своём устройстве.
Initial Access
2 techniquesДоставка. Фишинг, поддельный установщик, SEO-poisoning. Пользователь запускает малварь на своём устройстве.
The malicious repository became the top-rated suggestion in Bing’s AI search results for OpenClaw Windows.
Execution
2 techniquesThe viral popularity of OpenClaw has also led threat actors to capitalize on the phenomenon to distribute malicious GitHub repositories posing as OpenClaw installers to deploy information stealers like Atomic and Vidar Stealer, and a Golang-based proxy malware known as GhostSocks using ClickFix-style instructions.
The viral popularity of OpenClaw has also led threat actors to capitalize on the phenomenon to distribute malicious GitHub repositories posing as OpenClaw installers to deploy information stealers like Atomic and Vidar Stealer, and a Golang-based proxy malware known as GhostSocks using ClickFix-style instructions.
Stealth
1 techniqueThe viral popularity of OpenClaw has also led threat actors to capitalize on the phenomenon to distribute malicious GitHub repositories posing as OpenClaw installers to deploy information stealers like Atomic and Vidar Stealer, and a Golang-based proxy malware known as GhostSocks using ClickFix-style instructions.
Credential Access
2 techniquesThese stealer malware families – of which there are many, such as Atomic, Lumma, and Vidar Stealer – come with capabilities to harvest a wide range of information from compromised systems, including cookies. | Session theft involves the covert exfiltration of session cookies from the web browser, either by gathering existing ones or waiting for a victim to log in to an account, to an attacker-controlled server.
Инфостилер читает файлы и память браузера, где лежат сессионные куки - Credentials from Web Browsers (T1555.003, Credential Access).
Exfiltration
1 techniqueSession theft involves the covert exfiltration of session cookies from the web browser... to an attacker-controlled server.
Recent activity
11 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Information-stealing malware family capable of harvesting data from compromised systems, including session cookies.
An information stealer distributed via malicious GitHub repositories masquerading as OpenClaw installers.
An information-stealing malware for macOS distributed via malicious AI-agent “skills”/plugins in third-party marketplaces (ClawHub/SkillsMP).
Инфостилер, используемый для кражи сессионных cookie, паролей и данных автозаполнения из браузеров с последующей эксфильтрацией на C2 и возможным захватом аккаунтов в обход MFA.
The version that knows your environment.
Match every observed IP, domain, and hash against your live telemetry.
Named campaigns wielding this family, with evidence pinned to each claim.
CVEs this family uses for access and lateral movement.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Every documented technique, ranked by evidence weight.
Reddit, Mastodon, and CTI community discussion around this family.