Tuesday, February 17, 2026

MikeGPT CyberSecurity

“Playbook for the Secure Enterprise”

MikeGPT Daily Threat Rundown

Heroes, your curated look at the current cybersecurity landscape for Feb 17, 2026.

Critical Threats

Google Patches Actively Exploited Chrome Zero-Day

    Google has released an emergency update for the first Chrome zero-day of the year, which is being actively exploited to allow attackers to execute arbitrary code on user devices simply by visiting a compromised webpage. This vulnerability affects the browser's rendering engine, making it a high-risk vector for drive-by downloads.

    Business Impact

    If exploited, attackers could gain initial access to corporate endpoints, leading to potential ransomware deployment, data theft, and significant operational downtime. Unpatched browsers represent an open door for attackers to bypass perimeter defenses.

    Recommended Action

    Ask your IT team: "Have we enforced the emergency Chrome update across all employee workstations and servers immediately?"

    CVE-2026-2441 General Enterprise Malwarebytes ↗
Critical RCE in BeyondTrust Remote Support and PRA

    A critical vulnerability with a CVSS score of 9.9 has been disclosed in BeyondTrust Remote Support and Privileged Remote Access, allowing unauthenticated attackers to achieve full remote code execution via crafted WebSocket messages. This flaw exposes privileged access management systems that are intended to secure the most sensitive parts of a network.

    Business Impact

    Exploitation would grant attackers administrative control over the very tools used to manage privileged access, potentially leading to a total compromise of the IT infrastructure and massive data breaches.

    Recommended Action

    Ask your IT team: "Is our BeyondTrust instance exposed to the internet, and have we applied the critical patch for CVE-2026-1731 immediately?"

    CVE-2026-1731 General Enterprise Orca Security ↗
WordPress Plugin RCE Exposes Sites to Full Takeover

    A critical flaw in the WPvivid WordPress plugin allows unauthenticated attackers to execute remote code, enabling them to upload malicious PHP files and take full control of affected websites. This vulnerability is particularly dangerous as it requires no user interaction or credentials.

    Business Impact

    Compromised corporate websites can be used to host malware, redirect customers to phishing sites, or deface brand assets, resulting in severe reputational damage and loss of customer trust.

    Recommended Action

    Ask your Web Management team: "Do any of our web properties utilize the WPvivid plugin, and if so, has it been updated to the patched version?"

    CVE-2026-1357 General Enterprise Indusface ↗

High Severity

AI in the Middle: Turning Web-Based AI Services into C2 Proxies

    Check Point Research has discovered that AI assistants with web browsing capabilities can be abused as covert command-and-control (C2) relays, allowing attacker traffic to blend in with legitimate AI service communications. This technique, dubbed "AI in the Middle," complicates detection by masking malicious intent within trusted domains.

    Business Impact

    Attackers can maintain persistent access to the network while evading standard firewall and IDS/IPS detection, increasing the dwell time of intrusions and the likelihood of successful data exfiltration.

    Recommended Action

    Ask your SOC team: "Do our current network monitoring rules distinguish between legitimate AI assistant traffic and potential C2 tunneling behavior?"

    General Enterprise Check Point Research ↗
Microsoft Finds Summarize with AI Prompts Manipulating Chatbots

    Microsoft research reveals that legitimate businesses are manipulating AI chatbots via "Summarize with AI" prompts on websites, effectively poisoning the data fed into AI models to skew recommendations. This technique mirrors search engine poisoning but targets the generative AI layer.

    Business Impact

    Reliance on manipulated AI summaries could lead to flawed business intelligence, skewed market analysis, and reputational harm if the organization's own AI tools ingest poisoned content.

    Recommended Action

    Ask your Data Science team: "How are we validating the integrity of external web content ingested by our internal AI summarization tools?"

    General Enterprise The Hacker News ↗
Side-Channel Attacks Against LLMs

    New research highlights side-channel attacks against Large Language Models (LLMs), specifically remote timing attacks that can infer information about the model or the data it processes. As models scale, these physical implementation vulnerabilities become more relevant.

    General Enterprise Schneier on Security ↗
Dutch Telecom Odido Hit by Data Breach

    Dutch telecom provider Odido suffered a data breach following unauthorized access, highlighting the persistent threat to telecommunications infrastructure. This incident underscores the importance of securing customer data against targeted attacks.

    General Enterprise Check Point Research ↗

Apple has introduced end-to-end encrypted RCS messaging in the iOS 26.4 developer beta, enhancing privacy for cross-platform messaging. This is a positive development for enterprise mobile security.

General Enterprise Security Affairs ↗
DavaIndia Pharmacy Breach Exposes Customer Data

    A security flaw in the DavaIndia Pharmacy chain exposed customer data and granted outsiders full administrative control. This incident serves as a reminder of the risks associated with third-party retail and supply chain partners.

Other Noteworthy

Side-Channel Attacks Against LLMs

    New research highlights side-channel attacks against Large Language Models (LLMs), specifically remote timing attacks that can infer information about the model or the data it processes. As models scale, these physical implementation vulnerabilities become more relevant.

    General Enterprise Schneier on Security ↗
Dutch Telecom Odido Hit by Data Breach

    Dutch telecom provider Odido suffered a data breach following unauthorized access, highlighting the persistent threat to telecommunications infrastructure. This incident underscores the importance of securing customer data against targeted attacks.

    General Enterprise Check Point Research ↗

Apple has introduced end-to-end encrypted RCS messaging in the iOS 26.4 developer beta, enhancing privacy for cross-platform messaging. This is a positive development for enterprise mobile security.

General Enterprise Security Affairs ↗
DavaIndia Pharmacy Breach Exposes Customer Data

    A security flaw in the DavaIndia Pharmacy chain exposed customer data and granted outsiders full administrative control. This incident serves as a reminder of the risks associated with third-party retail and supply chain partners.

Vendor Spotlight

Vendor

Island (Specialized Vendor)

Specialization: Enterprise Browser Platform

Why Island Today: Island offers an Enterprise Browser that centralizes security controls, allowing organizations to manage the browser environment directly to mitigate risks like the active Chrome zero-day exploit. Furthermore, its embedded data controls can govern user interactions with web-based AI tools, preventing data leakage and neutralizing 'AI in the Middle' threats.

Key Capability: Granular policy enforcement and data loss prevention (DLP) embedded directly within the web browser.

Recommended Actions: 1. Navigate to Management Console → Settings → General → Browser Updates 2. Navigate to Management Console → Policies → Data Protection → Add Rule 3. Navigate to Management Console → Extensions → Extension Settings

Verification Steps: - Launch Island Enterprise Browser on a test endpoint and navigate to island://settings/help - Attempt to paste text containing a mock credit card number or proprietary code into a public GenAI tool (e.g., chatgpt.com)

Learn More About Island ↗

Detection & Response

Detection & Response Kit (4 items)

⚠️ Disclaimer: Test all detection logic in non-production environments before deployment.

1. Vendor Platform Configuration - Island

# Actionable Guidance for Island # Generated: 2026-02-17 15:35:06 # Step 1: Navigate to Management Console → Settings → General → Browser Updates # Purpose: Mitigate the active Chrome zero-day exploit by enforcing the latest Chromium engine update immediately across the fleet. # Expected: The 'Minimum Required Version' is set to the patched release. Browsers below this version will be forced to update upon next launch or within the defined grace period (recommend setting to 'Immediate'). # Step 2: Navigate to Management Console → Policies → Data Protection → Add Rule # Purpose: Prevent data leakage into web-based AI tools (e.g., ChatGPT, Claude) by restricting input mechanisms. # Expected: Create a rule where 'Action' is 'Paste' and 'Keyboard Input', 'Destination' is the 'Generative AI' URL Category, and the 'Response' is set to 'Block' or 'Redact'. This neutralizes the risk of users submitting sensitive IP or PII to external AI models. # Step 3: Navigate to Management Console → Extensions → Extension Settings # Purpose: Neutralize 'AI in the Middle' threats by preventing the installation of unverified browser extensions that claim to offer AI assistance. # Expected: Set the 'Default Installation Mode' to 'Block'. Only extensions explicitly added to the Allow List will be permitted to run, preventing malicious third-party AI wrappers from harvesting data. # Verification Steps: # - Launch Island Enterprise Browser on a test endpoint and navigate to island://settings/help # Expected: The browser version displayed matches the patched Chromium version specified in the Update Policy, confirming the zero-day mitigation is active. # - Attempt to paste text containing a mock credit card number or proprietary code into a public GenAI tool (e.g., chatgpt.com) # Expected: The paste action is blocked, and an Island system notification appears stating 'Action Blocked by Security Policy', confirming the DLP control is functioning.

2. YARA Rule for ShadowPad/Ink Malware (Check Point Indicators)

rule CheckPoint_ShadowPad_Ink_Detection { meta: description = "Detects ShadowPad and Ink malware variants associated with AI-in-the-Middle attacks" author = "Threat Rundown" date = "2026-02-18" reference = "https://research.checkpoint.com/?p=32610" severity = "high" tlp = "white" strings: $s1 = "ShadowPad" ascii wide $s2 = "Ink" ascii wide $s3 = "FinalDraft" ascii wide $s4 = "Squidoor" ascii wide $s5 = "NANOREMOTE" ascii wide $s6 = "VARGEIT" ascii wide $s7 = "CDBLoader" ascii wide $s8 = "PrintNotifyPotato" ascii wide $s9 = "Jewelbug" ascii wide $s10 = "REF7707" ascii wide $h1 = { 4D 5A 90 00 03 00 00 00 } condition: $h1 at 0 and any of ($s*) }

3. SIEM Query — AI C2 Proxy Detection

index=security sourcetype="web_proxy" OR sourcetype="firewall" (url="*chatgpt.com*" OR url="*claude.ai*" OR url="*bing.com/chat*") | eval risk_score=case( match(user_agent, "February"), 100, bytes_out > 5000000 AND bytes_in < 1000, 75, 1==1, 0) | where risk_score >= 50 | table _time, src_ip, dest_ip, url, user_agent, bytes_out, risk_score | sort -_time

4. PowerShell Script — Suspicious Notepad Process Check

# Detects 'notepad.exe' running from unusual locations (Indicator from Check Point) $computers = "localhost", "SERVER01", "WKSTN01" foreach ($computer in $computers) { if (Test-Connection -ComputerName $computer -Count 1 -Quiet) { Invoke-Command -ComputerName $computer -ScriptBlock { Get-Process -Name "notepad" -ErrorAction SilentlyContinue | Select-Object Name, Path, Id | ForEach-Object { if ($_.Path -and $_.Path -notmatch "System32" -and $_.Path -notmatch "SysWOW64") { Write-Warning "Suspicious Notepad found: $($_.Path) (PID: $($_.Id))" } } } } }

This rundown should provide a solid overview of the current threat landscape. Thank you to all our cyberheroes for your diligence and hard work. Stay vigilant!