StealC and Amadey: Breaking down infostealers and the cybercrime services that deliver them

In this article 1. The role of infostealers: From credential theft to intrusion 2. StealC: Infostealer for rent 3. Amadey: Malware-as-a-service for delivery of infostealers 4. Defending against StealC and Amadey intrusions 5. Microsoft Defender detections 6. Indicators of compromise Infostealers...

Infostealers are becoming the go-to phishing payload

Phishing has changed. Slowly but surely, cybercriminals are turning to infostealers instead. Traditional phishing hasn't gone away. Far from it. But many attackers are no longer focused solely on tricking victims into entering usernames and passwords on fake login pages. Instead, they are using...

Fake malware-signing service Fox Tempest dismantled by Microsoft

Microsoft says it dismantled a malware-signing-as-a-service MSaaS called Fox Tempest, which helped cybercriminals make malware appear legitimate. The service let customers submit malicious files to be digitally signed with short-lived Microsoft-issued certificates, making the malware look...

Financial cyberthreats in 2025 and the outlook for 2026

In 2025, the financial cyberthreat landscape continued to evolve. While traditional PC banking malware declined in relative prevalence, this shift was offset by the rapid growth of credential theft by infostealers. Attackers increasingly relied on aggregation and reuse of stolen data, rather than...

Malicious code in qyrm-pipinject4 (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: kam193 9a21af6fd1f0c3069036b62cd769efe0cd35077f9141b1454397e44561c73461 During installation, the package starts a reverse shell. --- Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers. Campaign:...

macOS Users Hit by Python Infostealers Posing as AI Installers

Microsoft details 3 Python Infostealers hitting macOS users via fake AI tools, Google ads, and Terminal tricks to steal passwords and crypto, then erase traces...

Infostealers without borders: macOS, Python stealers, and platform abuse

Infostealer threats are rapidly expanding beyond traditional Windows-focused campaigns, increasingly targeting macOS environments, leveraging cross-platform languages such as Python, and abusing trusted platforms and utilities to silently deliver credential-stealing malware at scale. Since late...

Hiding in Plain Sight: Multi-Actor ahost.exe Attacks

Hiding in Plain Sight: Deconstructing the Multi-Actor DLL Sideloading Campaign abusing ahost.exe By Mallikarjun Wali and Mohideen Abdul Khader · January 14, 2026 Executive summary The Trellix Advanced Research Center has uncovered an active malware campaign that exploits a DLL sideloading...

Lone Hacker Used Infostealers to Access Data at 50 Global Companies

A Hudson Rock report reveals how an Iranian hacker named Zestix breached 50 global companies, including Iberia Airlines and Pickett & Associates, by using stolen passwords and a lack of MFA...

Malicious code in aiogram-types-v3 (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: kam193 f6ba04e944f1dfda1aaa2d571fa79cd8ce4074a106bae228e582473226810baf During installation or importing the module, the package starts a reverse shell to hardcoded locatiom --- Category: MALICIOUS - The campaign has clearly...

Fake Battlefield 6 Downloads Are Spreading Malware, Stealing Player Data

Bitdefender Labs found fake Battlefield 6 pirated copies and trainers spreading aggressive malware, C2 agents, and infostealers, designed to steal player data and crypto-wallets...

Scammers Compromised by Own Malware, Expose $4.67M Operation

CloudSEK uncovered a Pakistan-based family cybercrime network that spread infostealers via pirated software, netting $4.67M and millions of…...

GitHub Abused to Spread Amadey, Lumma and Redline InfoStealers in Ukraine

Hackers abused fake GitHub accounts to spread Emmenhtal, Amadey, Lumma and Redline infoStealers in attacks linked to a phishing campaign targeting Ukraine in early 2025...

Billions of logins for Apple, Google, Facebook, Telegram, and more found exposed online

When organizations, good or bad, start hoarding collections of login credentials the numbers quickly add up. Take the 184 million logins for social media accounts we reported about recently. Now try to imagine 16 billion! Researchers at Cybernews have discovered 30 exposed datasets containing fro...

Fake AI Video Tool Ads on Facebook, LinkedIn Spread Infostealers

Mandiant Threat Defense uncovers a campaign where Vietnam-based group UNC6032 tricks users with malicious social media ads for…...

184 million logins for Instagram, Roblox, Facebook, Snapchat, and more exposed online

A recent discovery by cybersecurity researcher Jeremiah Fowler of an unsecured database containing over 184 million unique login credentials has once again highlighted the growing threat posed by infostealers. While the sheer volume of exposed data—including emails, passwords, and authorization...

Fake CAPTCHA Attacks Deploy Infostealers and RATs in a Multistage Payload Chain

We have detected a new tactic involving fake CAPTCHA pages that trick users into executing harmful commands in Windows. This scheme uses disguised files sent via phishing and other malicious methods...

SquareX Unveils Polymorphic Extensions that Morph Infostealers into Any Browser Extension – Password Managers, Wallets at Risk

Palo Alto, Singapore, 6th March 2025, CyberNewsWire...

Macs targeted by infostealers in new era of cyberthreats

The latest, major threats to Mac computers can steal passwords and credit card details with delicate precision, targeting victims across the internet based on their device, location, and operating system. These are the dangers of “infostealers,” which have long plagued Windows devices but, in the...

$10 Infostealers Are Breaching Critical US Security: Military and Even the FBI Hit

A new report reveals how cheap Infostealer malware is exposing US military and defense data, putting national security at risk. Hackers exploit human error to gain access...