Infostealer

This analytic detects unauthorized access to the WinSCP security configuration folder, which stores sensitive SSH and FTP credentials, by processes other than WinSCP, leveraging Windows Security Event 4663 to identify abnormal read or access attempts often indicative of credential-stealing malware like Phantom Stealer.

Red Canary reports heightened activity of the CastleLoader malware loader, which uses paste-and-run techniques and legitimate tools to deliver infostealers and RATs, alongside continued prevalence of the ClearFake activity cluster in June 2026.

Cruciferra is a sophisticated crypter-as-a-service, written in Mono, actively developed and sold to multiple cybercriminal threat actors who use it to deliver a wide range of remote access trojans and infostealers, employing extensive defense evasion techniques like BYOVD-based EDR tampering, Process Ghosting, and unique cryptographic obfuscation via email-based phishing campaigns.

Microsoft Defender Experts observed increased ACR Stealer activity from late April to mid-June 2026, using ClickFix social engineering lures in two distinct campaigns to steal browser credentials, authentication tokens, and sensitive documents from enterprise environments via WebDAV-based Python loaders or MSHTA-initiated PowerShell with steganography.

FortiGuard Labs identified a global phishing campaign employing obfuscated JScript, disguised TrueType Font (.ttf) files, and Lua loaders to deliver remote access Trojans (RATs) and infostealers to victims.

The ClickLock macOS infostealer employs a unique coercive tactic by repeatedly killing essential macOS applications, such as Finder and Dock, every 210 milliseconds until the victim provides their login password, leading to the exfiltration of sensitive credentials and cryptocurrency wallets.

Since late June 2026, an unattributed threat actor has launched a campaign leveraging over 290 deceptive GitHub repositories that impersonate legitimate software and security vendors, including Arctic Wolf, to deliver the BoryptGrab-Lineage infostealer through concealed download links, compromising victim systems upon execution.

The Armored Likho APT group is conducting a spear-phishing campaign against government and energy sectors in Russia, Kazakhstan, and Brazil, using AI-generated loaders and the Python-based BusySnake Stealer to exfiltrate credentials and sensitive data.

Aurora Stealer has been observed using the Windows Management Instrumentation Command-line (WMIC) utility to perform extensive system reconnaissance, gathering details like OS version, CPU, GPU, disk drives, memory, and display resolution, indicating early-stage information gathering for subsequent data exfiltration or malware deployment.

Adversaries leverage the built-in Windows Management Instrumentation Command-line (WMIC.EXE) utility with the `csproduct` command to perform hardware model and vendor reconnaissance on target systems, a technique observed in campaigns utilizing infostealers like Kuraystealer, enabling further tailored attacks.

Information-stealing malware such as Phantom Stealer targets WinSCP's security configuration folder to harvest sensitive SSH and FTP credentials, leading to unauthorized access to remote systems and potential lateral movement.

This brief details the detection of non-Discord applications accessing the Discord LevelDB database on Windows endpoints, a critical activity often indicative of credential theft or sensitive data exfiltration by infostealer malware, which can lead to unauthorized access to user profiles and messages.

Attackers compromised Laravel Lang packages by rewriting GitHub tags, distributing a credential-stealing malware targeting cloud credentials, secrets, keys, browser data, and cryptocurrency wallets across Windows, Linux, and macOS systems.

Nimbus Manticore, an Iranian IRGC-affiliated threat actor, resurfaced during Operation Epic Fury, employing AppDomain Hijacking, SEO poisoning, and a new MiniFast backdoor while targeting the aviation and software sectors.

The SHub Reaper stealer combines credential theft, wallet hijacking, and document exfiltration with persistent backdoor access on macOS, distributed through fake WeChat and Miro installers while spoofing Apple, Google, and Microsoft to evade detection.

A new variant of the 'SHub' macOS infostealer, dubbed Reaper, uses AppleScript to display a fake security update message and install a backdoor, ultimately stealing browser data, financial documents, and cryptocurrency wallet information while bypassing Terminal-based mitigations in macOS.

Hackers injected credential-stealing malware into newly published versions of the node-ipc npm package in a supply chain attack, collecting cloud credentials, SSH keys, CI/CD secrets, and other sensitive data, exfiltrating it through DNS TXT queries.

A steganography-based malware campaign uses PawsRunner to deliver the PureLogs infostealer, highlighting evolving delivery methods.

The Gremlin stealer malware has evolved with advanced obfuscation techniques, crypto clipping, and session hijacking capabilities to steal sensitive information from compromised systems.

The Atomic macOS Stealer (AMOS) is a prevalent malware-as-a-service targeting macOS, distributed via social engineering techniques like ClickFix ruses and fake installers, designed to steal sensitive data such as credentials and cryptocurrency wallets, leading to potential account compromise and further attacks.

Attackers are using Google Ads malvertising and weaponized Claude.ai shared chats to trick macOS users into downloading and executing malware, leading to credential theft and system compromise.

A malicious repository on Hugging Face, impersonating OpenAI's 'Privacy Filter' project, distributed information-stealing malware to Windows users by executing a PowerShell command that downloads and runs a Rust-based infostealer, which exfiltrates collected data to a command-and-control server.

The ClickFix campaign targets macOS users with fake utility fixes, tricking them into running malicious Terminal commands to install infostealing malware such as Macsync, Shub Stealer, and AMOS.

The 'BackgroundFix' ClickFix campaign uses social engineering to trick victims into downloading malware disguised as a free image-editing tool, leading to the deployment of CastleLoader, NetSupport RAT for remote access, and CastleStealer for credential theft.

TeamPCP compromised CI/CD pipelines and GitHub accounts of multiple companies by deploying an infostealer to extract credentials from CI environments, .env files, and cloud tokens, impacting projects like Trivy, KICS, and LiteLLM.

SnappyClient is a multi-functional malware delivered via HijackLoader that steals data from browsers, takes screenshots, logs keystrokes, and establishes a remote terminal for attacker command and control.

A new exploit dubbed 'DarkSword' is being actively exploited in infostealer campaigns targeting iPhones, potentially leading to unauthorized data access and device compromise.

A trojanized EmEditor installer was distributed through a trusted source, delivering an infostealer, highlighting how attackers exploit legitimate software distribution channels to bypass user trust and security controls.

Atypical processes accessing the Chrome user data directory may indicate credential harvesting, cookie theft, or other malicious activity by malware such as Remote Access Trojans (RATs) or information stealers.

Traccar GPS Tracking System 6.11.1 is vulnerable to Cross-Site WebSocket Hijacking (CSWSH), enabling attackers to steal sensitive GPS data by exploiting a lack of origin validation.