A week in security (April 6 – April 12)

Last week on Malwarebytes Labs: Fake Claude site installs malware that gives attackers access to your computer ClickFix finds a new way to infect Macs Scammers pose as Amazon support to steal your account NSFW app leak exposes 70,000 prompts linked to individual users 30,000 private Facebook imag...

MAL-2026-2631 Malicious code in babel-plugin-blocks (npm)

Malicious package due to data exfiltration via test, preinstall, and preupdate scripts in package.json using wget to send data to webhook.site. --- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 679960b444e4781d7276df8692808a4bc4507d29aefe943ffe4d3dfb35dcc141 The...

MAL-2026-2636 Malicious code in seaport-core-16 (npm)

Package exfiltrates user info to a remote server via wget in test, preinstall, and preupdate scripts. Very few published versions. --- -= Per source details. Do not edit below this line.=- Source: amazon-inspector be2cd9e6e61b20566214a0627d5923ec7cbe799e9757d25fd883f46616e5b58b The package...

Malicious code in seaport-core-16 (npm)

Package exfiltrates user info to a remote server via wget in test, preinstall, and preupdate scripts. Very few published versions. --- -= Per source details. Do not edit below this line.=- Source: amazon-inspector be2cd9e6e61b20566214a0627d5923ec7cbe799e9757d25fd883f46616e5b58b The package...

YARA-X 1.15.0

YARA-X is a re-incarnation of YARA, a pattern matching tool designed with malware researchers in mind. This new incarnation intends to be faster, safer and more user-friendly than its predecessor. The ultimate goal of YARA-X is replacing YARA as the default pattern matching tool for malware...

Malicious code in robase-app (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: kam193 596d80290905c61841be2afc4bb833850683b152c52f8e58bce3faa32afe7deb During installation package downloads and runs a malicious executable. Likely continuation of 2026-03-rowrap. The campaign is built over a malicious Roblox API...

Malicious code in upstartportal (npm)

Collects system info, reads sensitive files, and exfiltrates data to a suspicious host. Multiple YARA matches confirm malicious intent. --- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 932dee0dcf84fc1044efb1ec35950d6102fcbb5122f26cca5e2b1f13eb599729 The package...

Malicious code in upstartdr (npm)

Package is malware. It steals credentials, system info, and exfiltrates data to a remote server via a postinstall script. High confidence. --- -= Per source details. Do not edit below this line.=- Source: amazon-inspector d6563c7981cb66eadd2e5e9afe7b2957682f62c767cdfbe4258048c628758525 The packag...

Malicious code in upstart-loan-status (npm)

Malicious package with postinstall script exfiltrating sensitive system data to a remote server. Multiple YARA rules and LLM analysis confirm. --- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 2e7850b2e1fe8a8eeebd2a8593220743deeacbed610ada8e460fcd15bc51c732 The...

MAL-2026-2824 Malicious code in unisys-uka (npm)

Package is malware. Collects sensitive info, reads files, executes commands, and exfiltrates data to a remote server via postinstall script. --- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 25745bb1be4d673e8e465091f55bfdad6ad5cd5740583fd9a9f38fd7dd3e5d57 The...

MAL-2026-2562 Malicious code in robase-fallback (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: kam193 a90a9e6e638fef782e18c99b5ab69341776385c7c7e6000af01a6b0fd2c3b0b6 During installation package downloads and runs a malicious executable. Likely continuation of 2026-03-rowrap. The campaign is built over a malicious Roblox API...

MAL-2026-2563 Malicious code in robase-installer (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: kam193 1edd96cface7dcae9f445d94982ffc19a27e557fae7030e77e6e5646dfdd5c98 During installation package downloads and runs a malicious executable. Likely continuation of 2026-03-rowrap. The campaign is built over a malicious Roblox API...

Malicious code in api-analysis (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: kam193 c3bf88cef3ca699f69bada95749b40c4426c9a9c528e53c473698be88cbdc783 During installation package downloads and runs a malicious executable. Likely continuation of 2026-03-rowrap. The campaign is built over a malicious Roblox API...

MAL-2026-2556 Malicious code in api-analysis (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: kam193 c3bf88cef3ca699f69bada95749b40c4426c9a9c528e53c473698be88cbdc783 During installation package downloads and runs a malicious executable. Likely continuation of 2026-03-rowrap. The campaign is built over a malicious Roblox API...

MAL-2026-2555 Malicious code in api-feature (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: kam193 c86a3079da8157aef32d5d4c4f2420239981a142fc1150eb0ac2e695be2779e9 During installation package downloads and runs a malicious executable. Likely continuation of 2026-03-rowrap. The campaign is built over a malicious Roblox API...

Malicious code in api-feature (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: kam193 c86a3079da8157aef32d5d4c4f2420239981a142fc1150eb0ac2e695be2779e9 During installation package downloads and runs a malicious executable. Likely continuation of 2026-03-rowrap. The campaign is built over a malicious Roblox API...

MAL-2026-2541 Malicious code in gd-auth-sso (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: kam193 8f23b8545f85df66640646272b028ab4db1032fcb4fd5bbd745971b3438cc4f1 Installing the package or importing the module exfiltrates basic information about the host, and the package has no other purpose. --- Category: PROBABLYPENTES...

GraphAlgo Scam: Lazarus Hackers Register Real US LLCs to Spread Malware

ReversingLabs has discovered a fresh wave of the graphalgo campaign in which North Korean Lazarus hackers are using fake Florida LLCs, mimicking SWFT Blockchain, and using GitHub typo-squatting to target developers with malware...

Fake Claude site installs malware that gives attackers access to your computer

Claude’s rapid growth—nearly 290 million web visits per month—has made it an attractive target for attackers, and this campaign shows how easy it is to fall for a fake site. We discovered a fake website impersonating Anthropic’s Claude to serve a trojanized installer. The domain mimics Claude's...

ClickFix finds a new way to infect Macs

ClickFix campaigns are looking for alternatives now that many Mac users have been made aware of the dangers of pasting certain commands into Terminal. Researchers found that ClickFix has kept the same social engineering playbook but completely sidestepped Terminal by using the applescript:// URL...