Multiple samples of SpyNote, a sophisticated Android spyware, were discovered in open directories, disguised as legitimate apps like Google Translate, Temp Mail, and Deutsche Postbank. The malware exploits accessibility services and device administrator privileges to steal sensitive information from infected devices. Samples were found on various servers, including AWS and SonderCloud Limited, with different command and control (C2) infrastructures. The discovery highlights the ongoing threat of SpyNote, especially after its source code leak in late 2022, and emphasizes the importance of proactive threat detection and analysis.
A sophisticated phishing campaign impersonating U.S.state Departments of Motor Vehicles emerged in May 2025, using SMS phishing and deceptive websites to harvest personal and financial data. Victims received messages about unpaid toll violations, directing them to fake DMV sites requesting extensive information. Technical analysis revealed shared infrastructure, consistent domain naming, and indicators of a China-based threat actor. The campaign used spoofed SMS numbers, often from the Philippines, and email addresses from obscure domains. Phishing websites followed a pattern using state IDs and specific TLDs. Infrastructure analysis showed connections to known malicious IP addresses and Chinese DNS providers. The campaign's widespread impact prompted alerts from multiple states and federal authorities.
A SpyLoan application called 'RapiPlata' was identified on a victim's device, having been downloaded by over 150,000 users from both Google Play and Apple App Store. The app, which ranked in the top 20 finance category in Colombia, had extensive access to sensitive user data, including SMS messages, call logs, calendar events, and installed applications. It uploaded this data to its servers, posing significant risks to users' privacy and financial security. The app's malicious behavior included harassing messages, unauthorized loan approvals, and data theft. Despite its removal from official app stores, it remains accessible through third-party websites. The app is part of a larger SpyLoan malware operation, with similarities to previously identified malicious apps.
An investigation uncovered more than 20 cryptocurrency phishing applications on the Google Play Store impersonating legitimate wallets like SushiSwap and PancakeSwap. These malicious apps employ phishing techniques to steal users' mnemonic phrases, allowing access to real wallets and theft of funds. The apps share common patterns, including embedded C&C URLs in privacy policies and similar package names. They are distributed through compromised developer accounts previously used for legitimate apps. Two main types were identified: those using the Median framework and those directly loading phishing URLs into WebViews. The campaign demonstrates a coordinated operation with a large-scale phishing infrastructure linked to over 50 domains.
BERT Ransomware, active since March 2025, has expanded its operations to target both Windows and Linux environments. The group uses phishing for initial access and communicates via the dark web and Sessions for negotiations. Victims span multiple countries, primarily affecting service and manufacturing sectors. The Windows variant employs multiple file extensions and RSA encryption, while the Linux version shares code with Sodinokibi/REvil ransomware. A weaponized PowerShell script is used to disable security features before payload execution. The ransomware's infrastructure is linked to a Russian firm, suggesting potential ties to the region.
An AMOS malware campaign has been discovered utilizing GitHub repositories to distribute malicious files. The attackers created a fake Ledger Live app that prompts users to enter their secret phrases, which are then exfiltrated. The malware uses obfuscation techniques, including base64 encoding and custom XOR operations. The campaign targets cryptocurrency users, specifically those using hardware wallets. The malware is distributed through DMG files and ZIP archives, containing both x64 and ARM64 versions of AMOS. The attackers use multiple domains for command and control, and the malware performs checks to detect virtual environments.
A recent phishing campaign targeting Steam users has been identified, involving deceptive messages sent through the platform's Friends list. The attackers use fraudulent URLs that closely mimic Steam's official domain, directing users to a fake 'Summer Gift Marathon' page. Upon logging in, users' credentials are stolen, potentially leading to further phishing attacks and theft of inventory items. The blog post lists numerous similar phishing domains and provides tips for users to stay safe, including only logging in through the legitimate Steam website, being cautious of unexpected messages with links, and using tools like URLscan.io and VirusTotal to check suspicious websites.
Unit 42 researchers identified a new wave of Prometei botnet attacks in March 2025. The malware, which includes Linux and Windows variants, allows remote control of compromised systems for cryptocurrency mining and credential theft. Prometei is actively developed, incorporating new modules and methods, including a backdoor for various malicious activities. It uses a domain generation algorithm for C2 infrastructure and self-updating features for evasion. The article analyzes versions three and four of the Linux variant, highlighting differences from version two. Prometei's modular architecture makes it highly adaptable, with components for brute-forcing credentials, exploiting vulnerabilities, mining cryptocurrency, stealing data, and C2 communication. The botnet's primary goal is Monero mining, but it also has secondary capabilities like credential theft and deploying additional malware payloads.
A new phishing campaign has been observed leveraging a .gov domain to deceive employees into believing they owe an unpaid toll. The scam uses urgency and fear tactics, threatening penalties or vehicle registration holds if the balance is not paid immediately. The threat actors utilize the GovDelivery system to increase legitimacy, despite using Indiana's instance for a Texas-related scam. The phishing link leads to a fake website that collects personal information and credit card details. The campaign exploits fear of consequences and mimics a well-known service, highlighting the importance of integrating human expertise into email security processes to identify threats that bypass conventional malicious indicators.
A new campaign exploiting GitHub to distribute malicious Python code disguised as legitimate hacking tools has been uncovered. The operation, attributed to the group known as Banana Squad, used 67 repositories hosting trojanized files that mimicked benign open-source projects. The attackers exploited GitHub's interface to conceal backdoor code using long space strings, making the malicious content invisible in normal view. Each GitHub account typically hosted one repository, likely fake and created solely to deliver malicious content. Hidden code within the Python files used encoding methods to obscure payload delivery functions. The campaign reflects a shift in open-source software supply chain attacks, with attackers now leveraging more covert tactics to target platforms like GitHub. Developers are advised to verify repositories, avoid reliance on single-repository accounts, and monitor for suspicious domains.
China-linked group Salt Typhoon breached satellite firm Viasat
Source: https://securityaffairs.com/179146/security/china-linked-group-salt-typhoon-breached-satellite-firm-viasat.html
Banana Squad, a threat actor first identified in 2023, has launched a new campaign targeting GitHub repositories. The group has created over 60 trojanized repositories masquerading as hacking tools written in Python. These malicious repositories contain hundreds of trojanized Python files that utilize encoding and encryption techniques to hide backdoor code. The campaign primarily uses the domain dieserbenni[.]ru, with a new domain 1312services[.]ru detected recently. The trojanized repositories exploit GitHub's UI feature where long lines of code don't wrap, allowing attackers to hide malicious code off-screen. This sophisticated technique makes visual detection challenging, highlighting the increasing stealth of supply chain attacks on open-source platforms.
A detailed analysis of a sophisticated intrusion targeting a cryptocurrency foundation employee is presented. The attack, attributed to the North Korean APT group BlueNoroff, began with a social engineering lure via Telegram, leading to the installation of malicious software disguised as a Zoom extension. The intrusion involved multiple stages of malware deployment, including persistent implants, backdoors, keyloggers, and cryptocurrency stealers. The attackers utilized advanced techniques such as process injection on macOS and leveraged various tools to collect sensitive information, particularly focusing on cryptocurrency-related data. The analysis covers the initial access vector, technical details of the malware components, and their functionalities, providing insights into the evolving tactics of state-sponsored threat actors targeting macOS systems.
A malicious WordPress plugin named 'wordpress-player.php' has been discovered, affecting at least 26 websites. The plugin injects a hidden HTML5 video player and establishes a WebSocket connection to a command and control server. It redirects visitors to suspicious websites after 4-5 seconds, avoiding execution for logged-in users. The malware uses a fake 'WordPress Core' author name to evade detection. It impacts website integrity through unauthorized redirects, SEO degradation, and potential security risks to visitors. Mitigation steps include thorough scanning, malware removal, credential resets, software updates, and implementing a Web Application Firewall.
A Russia state-sponsored cyber threat actor impersonated the U.S. Department of State to target prominent academics and critics of Russia. The attackers used extensive rapport building and tailored lures to convince targets to set up application specific passwords (ASPs). Once obtained, these ASPs allowed persistent access to victims' mailboxes. Two distinct campaigns were observed, both using residential proxies and VPS servers for access. The attackers sent phishing emails disguised as meeting invitations, including spoofed Department of State email addresses to increase legitimacy. Victims were directed to create ASPs with specific names, which the attackers then used to access their email accounts. This activity is tracked as UNC6293 and is assessed with low confidence to be associated with APT29 / ICECAP.
This analysis examines the distribution trends of Infostealer malware in May 2025. It highlights the use of SEO poisoning to distribute malware disguised as cracks and keygens. LummaC2, Vidar, StealC, Rhadamanthys, and Amadey were the main Infostealers observed. Distribution methods included posts on legitimate websites, forums, and Q&A pages. Malware was primarily distributed in EXE format (95.4%), with a decrease in DLL-SideLoading (4.6%). Notable trends include the emergence of BAT script malware, use of the Wormhole file-sharing service for distribution, and the use of Unicode characters in compression passwords to bypass security measures. The report provides insights into distribution volumes, methods, and disguises based on data collected and analyzed by advanced security systems.
This analysis examines Advanced Persistent Threat (APT) attacks in South Korea during May 2025. The majority of identified attacks utilized spear phishing as the primary infiltration method. Two main types of attacks were observed: Type A, which uses LNK files to execute malicious scripts and download additional malware, and Type B, which employs LNK files to download and execute obfuscated Python scripts. Both types use deception techniques, including decoy documents and task scheduler manipulation. The attacks targeted various sectors, using topics such as financial reporting, privacy protection, and business registration to lure victims. The report provides detailed information on file names, decoy documents, and indicators of compromise, including MD5 hashes, URLs, FQDNs, and IP addresses associated with the malicious activities.
The Kimsuky group has launched a sophisticated phishing attack disguised as a request for paper review from a professor. The attack involves a password-protected HWP document with a malicious OLE object, which creates six files upon opening. When executed, these files perform various malicious activities, including collecting system information, downloading additional files, and establishing remote access through AnyDesk. The threat actors use legitimate software and cloud storage services like Dropbox as part of their attack infrastructure. The malware hides its presence by concealing AnyDesk's interface, making detection difficult for users. This case highlights the evolving tactics of APT groups and the importance of cautious handling of files from unknown sources.
A sophisticated variant of the Masslogger credential stealer malware has been identified spreading through .VBE files. This multi-stage fileless malware heavily relies on Windows Registry to store and execute its malicious payload. The infection begins with a .VBE file, likely distributed via spam email or drive-by downloads. The malware sets up registry keys for storing commands, stager configurations, and the final payload. It establishes persistence through a scheduled task and uses techniques to simulate user input. The malware employs multiple stagers to decode and load the final Masslogger payload, which is injected into the AddInProcess32.exe process. The payload targets multiple web browsers and email clients to steal credentials and sensitive information, with capabilities including keylogging, screen capture, and data exfiltration via FTP, SMTP, or Telegram.
In May 2025, Cisco Talos identified a Python-based remote access trojan (RAT) called 'PylangGhost', used by a North Korean-aligned threat actor. PylangGhost shares similarities with the previously documented GolangGhost RAT. The threat actor, Famous Chollima, has been targeting employees with experience in cryptocurrency and blockchain technologies through fake job interview sites. The attacks primarily affect users in India. The malware is deployed through a two-stage process involving fake skill-testing pages and malicious command execution. PylangGhost consists of six Python modules and offers functionalities similar to its Golang counterpart, including system information collection, file manipulation, and browser data theft from over 80 extensions.
