Cybersecurity & Threat Intelligence – September 26
Cloudflare Mitigates Record-Breaking 22.2 Tbps DDoS Attack
Category: DDoS | Network Security | Botnet Activity
Cloudflare successfully mitigated a Distributed Denial of Service (DDoS) attack peaking at 22.2 Tbps, the largest ever recorded. This event followed a 11.5 Tbps attack attributed to the AISURUR botnet, signaling the growing scale and sophistication of botnet-driven assaults.
Both incidents lasted only ~40 seconds, but generated traffic volumes equivalent to one million HD video streams simultaneously, straining routers, firewalls, and load balancers. While Cloudflare absorbed the attack, the challenge of filtering such traffic in real time demonstrates the limits of even resilient infrastructures.
SOC Monitoring Takeaway: The rise of record-scale DDoS threats highlights the essential role of NDR, anomaly detection, and automated mitigation tools in network security. Enterprises must combine proactive SOC monitoring, layered defenses, and AI-driven detection to counter increasingly powerful botnet campaigns.
CISA Confirms Federal Agency Breach via GeoServer Exploit
Category: Data Breach | Vulnerability Exploitation | Government
CISA disclosed that attackers infiltrated a U.S. federal civilian executive agency by exploiting an unpatched GeoServer vulnerability (CVE-2024-36401, CVSS 9.8 RCE). Despite a patch being issued in June 2024, the flaw remained unmitigated, allowing attackers to breach both a web server and SQL server.
Adversaries leveraged brute force password techniques (T1110) for lateral movement and privilege escalation, staying undetected for three weeks until an EDR tool flagged malicious activity.
Threat Intelligence Note: This breach underscores how delayed patching and insufficient visibility increase the risk of compromise. Government and enterprise networks must adopt threat intelligence-driven vulnerability management, strengthen SOC monitoring, and enforce continuous NDR to identify lateral movement and privilege escalation in real time.
Atomic Infostealer Campaign Targets macOS via GitHub Impersonation
Category: Malware | Infostealer | Supply Chain Abuse
Researchers have uncovered a large-scale macOS infostealer campaign distributing the Atomic Infostealer via fraudulent GitHub repositories impersonating trusted applications such as LastPass, Notion, Dropbox, Shopify, and SentinelOne.
The attackers employ SEO poisoning to push malicious GitHub results above legitimate ones, tricking users into downloading fake apps with terminal-based malware deployment instructions. The campaign mirrors earlier Google Ads malvertising and multi-stage droppers hosted on GitHub, pointing to a persistent supply chain exploitation trend.
Network Security Lesson: To counter infostealer campaigns, enterprises must enforce application source validation, leverage threat intelligence to track impersonation campaigns, and implement endpoint and network detection controls to block unverified software downloads. User awareness training remains essential.
Eurojust Arrests Five in €100M Cryptocurrency Fraud Operation
Category: Financial Crime | Cryptocurrency | Social Engineering
Law enforcement agencies coordinated by Eurojust and Europol arrested five suspects behind a €100 million cryptocurrency investment fraud spanning 23 countries. Operating since 2018, the scheme tricked victims with fraudulent platforms promising high returns, laundered money through Lithuanian banks, and demanded fake withdrawal fees before disappearing.
Authorities conducted raids across Spain, Portugal, Italy, Romania, and Bulgaria, freezing financial assets tied to the network.
Fraud Prevention Insight: This case underscores the rise of cross-border financial cybercrime. Enterprises and individuals should deploy transaction monitoring tools, threat intelligence for crypto scams, and anomaly detection to identify fraudulent activity before losses escalate.
Analyst Insight:
This week’s threat landscape illustrates the escalating breadth and intensity of global cyberattacks:
- DDoS attacks are reaching unprecedented levels, requiring adaptive network detection and response.
- Vulnerability exploitation in government networks highlights the dangers of delayed patching and limited SOC visibility.
- Infostealer malware campaigns are abusing GitHub and SEO, exploiting user trust in legitimate platforms.
- Cryptocurrency fraud remains a lucrative attack vector, demanding stronger detection and intelligence sharing.
As cyber threats grow in scale, speed, and sophistication, enterprises must invest in AI-powered NDR, continuous SOC monitoring, and proactive threat intelligence. Only by integrating these essential cybersecurity defenses can organizations defend against DDoS campaigns, supply chain exploits, malware distribution, and large-scale financial fraud.
👉 Request a demo today to see how AI-driven network detection and response can strengthen your organization’s defenses and give your SOC teams real-time visibility against modern cyber threats.
