Threat Intelligence & IOCs

Google Web Risk: Block phishing infrastructures

5 min de lecture Akuity SOC · Delphisoft Deutschland

Phishing regularly bypasses your spam filters. Learn how to leverage Google Web Risk within your SOC to block these threats at the source.

Phishing remains, year after year, the number one Initial Access vector for cyberattacks, including the most devastating ransomware. Despite the massive investment by companies in Secure Email Gateways, attackers are competing in ingenuity. They use compromised legitimate addresses, link obfuscation techniques (URL rewriting) or QR codes to thwart spam filters.

Once the email hits the employee's inbox, the company is at the mercy of a single click. To counter this threat, security operations centers (SOCs) must be able to identify and block infrastructure hosting these fake login sites before compromise. Find out how the integration ofGoogle Web Riskrevolutionizes this struggle.

The ephemeral nature of modern Phishing

Why do traditional blockers often fail against phishing? Due to the extreme volatility of campaigns.

A modern attacker does not create a single fraudulent website (e.g.:faux-site-banque.com) to leave it online for months. The infrastructure is designed to be disposable. The hacker buys 50 auto-generated domain names or uses free hosting services. It launches its email campaign, collects passwords and session tokens (Token Theft) within hours, then destroys or abandons the server before traditional security databases even have time to list the URL.

What is Google Web Risk (Safe Browsing)?

To fight against threats whose lifespan is measured in hours, we must rely on colossal databases, updated in near real time.

Google Web Risk(which powers Google Safe Browsing technology found in Chrome, Safari and Firefox) constantly scans billions of URLs and IP addresses on the Internet. Its machine learning algorithms detect deceptive sites (Social Engineering), hidden malware and unwanted software. When a URL is identified as dangerous, it is indexed instantly.

Proactive integration into the Akuity SOC

When a SOC analyst detects a suspicious click or examines an email reported by a user in Microsoft Defender, they encounter a URL or IP address. If it has to manually log into the Google Transparency Report portal to check each link, it loses its operational asymmetry.

In the orchestratorAkuity SOC, Web Risk verification is natively integrated into the IOCs (Indicators of Compromise) investigation module.

Crossing sources (automated OSINT)

When an IP address or domain name is submitted to the console, the application does not only look at AlienVault OTX. It simultaneously queries the Google Web Risk API.

If the infrastructure is recognized as hosting phishing, the interface's radial score gauge instantly turns critical red. The analysis note generated by the Gemini AI will display an unambiguous message:

“Active phishing detection or Google Safe Browsing / Web Risk reporting on this infrastructure.”

Immediate blocking (SOAR Remediation)

The analyst now has the absolute certainty that he is facing a phishing campaign. The objective is no longer just to purge the email, but to protect all employees who have already received it or who could click on the link from another source (eg: Teams instant messaging).

From the Akuity Ticket Panel, the analyst clicks on the action“Block IOC”(blockIocOnTenant). After MFA validation (AAL2 level), SOAR sends the instruction via API to Microsoft Defender for Endpoint. Access to this domain name or IP address is immediately and globally prohibited at the browser and corporate network level (via Defender Network Protection).

Conclusion: Intelligence for action

Phishing is a race. A Threat Intelligence database as powerful as Google Web Risk is only of interest if it is connected directly to your remediation engine (SOAR). By automating the evaluation of links and allowing them to be blocked in one click, you physically protect your employees against social engineering, even when perimeter defenses have failed.

Protect your employees from malicious links.> Find out how the toolAssess IP Reputation via AlienVault and Web RiskAkuity SOC accelerates your response to phishing incidents.

Page Solution Associée

Threat Intelligence and Evaluation of IOCs

Assess the dangerousness of your IPs and Domains with AlienVault OTX and Google Web Risk. IOCs injection and blocking in Defender for Endpoint.

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