🌐 Published at:CyberDudeBivash.com
🔗 Also on:LinkedIn: CyberDudeBivash
🔥 Top Active Threats (Past 24 Hours)
🚨 1. UNC3886 Exploiting 0-Days Across Multiple Platforms
Targeted Platforms:
- VMware vCenter/ESXi
- Fortinet FortiOS
- Juniper Junos OS
TTPs:
- Lateral movement using vSphere APIs
- Credential harvesting via FortiOS shell
- Bypassing firewall rules through config tampering
Action:
Apply all critical patches from VMware, Fortinet, and Juniper. Monitor east-west traffic for anomalies.
🦠 2. Xred Malware Delivered via Compromised Gaming Mouse Software
Vector: Supply-chain compromise in official gaming mouse drivers
Behavior:
- Steals browser credentials and clipboard data
- Injects malicious DLLs via startup registry keys
Action:
Advise users to scan for xred.dll, and revoke all saved credentials in Chrome/Edge/Firefox.
💀 3. Oyster Malware Posing as PuTTY/KeyPass in SEO Poisoning
Campaign:
- Malicious sites ranked via black-hat SEO
- Fake downloads push loader disguised as PuTTY
Victims:
- System admins and IT teams
- Enterprise users searching legit downloads
Action:
Block known IOC domains. Instruct users to download from official domains only. Implement web filtering.
🛠️ Critical Vulnerabilities Exploited in the Wild
🛑 CVE‑2025‑20337 — Cisco ISE RCE (Root Access)
- Severity: 🔥 CVSS 10.0
- Exploit: Remote attackers can gain root without authentication via API abuse
- Fix: Apply Cisco’s emergency patch. Restrict all external API access immediately.
🛑 CVE‑2025‑6558 — Google Chrome GPU Zero-Day
- Severity: ⚠️ CVSS 8.8
- Exploit: Bypasses Chrome sandbox via malformed WebGL GPU call
- Fix: Urgently update Chrome to the latest stable version.
🛑 CVE‑2025‑47978 (NOTLogon) — Windows Kerberos DoS
- Impact: Crafted requests from compromised hosts cause domain controller crashes
- Fix: Apply Microsoft Patch Tuesday fix. Restrict Netlogon from untrusted systems.
🧠 Threat Actor Focus: UNC3886
- Tied to espionage-style campaigns
- Expertise in zero-day weaponization
- Believed to be state-sponsored
Their Modus Operandi:
- Target virtual infrastructure & edge devices
- Evade EDR via kernel-level rootkits
- Use stolen certs for persistence
✅ Defender’s Checklist – July 28, 2025
🔒 Patch all critical CVEs (Chrome, Cisco, Windows DC)
🎯 Audit endpoint and browser sessions (SessionShield advised)
📌 Block access to fake PuTTY and KeePass domains
🔍 Monitor cloud activity logs for unusual behavior
📥 Alert on unauthorized driver installations
🚧 Isolate systems with outdated FortiOS, vCenter
✍️ Final Words from CyberDudeBivash
This week proves again — the perimeter is dead, and identity, API access, and trusted binaries are now the main battlefield. Attackers are advanced, but defenders can win through fast patching, proactive threat intel, and layered defense.👉 Stay ahead. Stay patched. Stay resilient.
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