🕵️‍♂️ SHUYAL Malware Campaign Targets 19 Popular Browsers to Steal Credentials - CyberDudeBivash

29 Jul

29Jul

📅 Published: July 29, 2025

✍️ By CyberDudeBivash | Cybersecurity Expert & Founder of CyberDudeBivash.com

🚨 Executive Summary

A newly discovered malware campaign dubbed SHUYAL is actively compromising systems by targeting 19 widely used browsers, including Chrome, Firefox, Brave, Edge, and Opera, with the primary goal of stealing saved login credentials, cookies, session tokens, and autofill data.The campaign appears to be highly evasive, stealthily running in memory, and communicating with command-and-control (C2) servers to exfiltrate sensitive information in real-time.

🔬 Technical Analysis

🧬 Malware Name: SHUYAL

🧑‍💻 Attack Vector: Malicious cracked software, rogue browser updates, and phishing links

🎯 Target: Chromium- and Gecko-based browsers

⚠️ Data Stolen:

🛡️ Component	🧠 Details Collected
🔑 Saved Credentials	Login usernames & passwords
🍪 Session Cookies	Persistent login and JWT tokens
🧾 Autofill Data	Emails, addresses, credit card numbers
🔍 Browser History	Recently visited sites
🛠️ Extensions	Installed security/privacy extensions

🌐 Affected Browsers (Partial List - 19 in total):

Google Chrome
Mozilla Firefox
Microsoft Edge
Brave Browser
Opera GX & Opera
Vivaldi
Chromium
Comodo Dragon
Torch
Slimjet
(And more)

🧠 Attack Chain

🎣 Phishing or SEO-poisoned download → User installs fake software or update
🧬 SHUYAL injected silently into system memory
🧪 Credential harvesting module scrapes local browser storage (SQLite & JSON files)
📡 Exfiltration via encrypted HTTPS POST to attacker-controlled C2
🔄 Persistence via scheduled tasks or registry keys

📸 Screenshot of SHUYAL Code in Action (Available Upon Request)

🔐 Real-World Threat Impact

💰 Account Takeover: Bank, email, and crypto logins stolen
🧑‍💼 Corporate Espionage: Stealing admin panel credentials
🧳 Identity Theft: Leaked PII from autofill data
⚔️ Post-Exploitation: Session hijacking even without password

✅ How to Protect Yourself

🔒 Defense Strategy	🛠️ Action
🚫 Block Suspicious Downloads	Avoid cracked/pirated software, especially browser updates
🔍 EDR Monitoring	Use Endpoint Detection & Response tools (CrowdStrike, SentinelOne)
🛡️ Install Anti-Stealer Tools	Use solutions like CyberDudeBivash’s SessionShield
💾 Vault Credentials	Use hardware password managers like YubiKey, avoid browser-based storage
🧹 Regular Cleanup	Clear browser storage & cookies often

📦 Our In-House Defense: SessionShield

SessionShield — our custom browser extension — detects and blocks phishing pages that mimic login forms, hijack cookies, or inject stealers like SHUYAL.

🔐 Blocks real-time session hijack attempts

🛡️ Uses behavioral fingerprinting to flag malicious domains

💻 Compatible with Chrome, Edge, Brave

📚 Expert Tip from CyberDudeBivash

“Your browser is your gateway to everything — email, bank, crypto, even your passwords. SHUYAL doesn’t crack passwords — it just steals them silently. Don't rely on browsers to keep your secrets safe.”