Thursday , April 24 2025
Graph

OVHcloud faces record 840 million DDoS Attack Using MikroTik Routers

French cloud computing firm OVHcloud recently handled the largest DDoS attack in terms of packet rate. This attack occurred during a period of increasing intensity in DDoS attacks.

According to the cloud provider, packet rate DDoS attacks are very effective because they are harder to stop than attacks with fewer, larger packets.

SonicWall patched SSLVPN Vuln Allowing Firewall Crashing

SonicWall has revealed a vulnerability in its SonicOS SSLVPN Virtual Office interface that could let remote attackers crash firewall appliances....
Read More
SonicWall patched SSLVPN Vuln Allowing Firewall Crashing

GitLab Releases Security Update For Multiple Vulns

GitLab has announced a security advisory urging users to upgrade their self-managed installations right away. Versions 17.11.1, 17.10.5, and 17.9.7...
Read More
GitLab Releases Security Update For Multiple Vulns

ISPAB president “whatsapp” got hacked via phishing link

Imdadul Haque, the president of Internet Service Provider of Bangladesh (ISPAB) said, I automatically got back my WhatsApp account. What...
Read More
ISPAB president “whatsapp” got hacked via phishing link

Zyxel released patches 2 vulns in its USG FLEX H series firewalls

Zyxel Networks has issued critical security patches for two high-severity vulnerabilities in its USG FLEX H series firewalls. These flaws...
Read More
Zyxel released patches 2 vulns in its USG FLEX H series firewalls

South Korea’s largest SK Telecom Hit by Malware: SIM-related info leaked

South Korea's largest mobile operator, SK Telecom, is warning that a malware infection allowed threat actors to access sensitive USIM-related...
Read More
South Korea’s largest SK Telecom Hit by Malware: SIM-related info leaked

ChatGPT Develops Exploit for CVEs Before Public PoCs Share

Security researcher Matt Keeley showed that artificial intelligence can now develop working exploits for critical vulnerabilities before public proof-of-concept (PoC)...
Read More
ChatGPT Develops Exploit for CVEs Before Public PoCs Share

TP-Link Router Vulns Allow to Execute Malicious SQL Commands

Several vulnerabilities have been found in TP-Link routers, exposing users to serious security risks from SQL injection flaws in their...
Read More
TP-Link Router Vulns Allow to Execute Malicious SQL Commands

SSL.com’s domain validation system’s bug found: Hacker exploited

SSL.com has revealed a major security flaw in its domain validation system, which could enable attackers to acquire fake SSL...
Read More
SSL.com’s domain validation system’s bug found: Hacker exploited

Amazon Follows Microsoft’s Lead, Halts Some Data Center Deals

Amazon has paused some data center lease negotiations for its cloud division, particularly in international markets, according to Wells Fargo...
Read More
Amazon Follows Microsoft’s Lead, Halts Some Data Center Deals

Hackers Exploit Zoom’s Remote Control Feature for System Access

ELUSIVE COMET is a threat actor conducting a sophisticated attack campaign that uses Zoom's remote control feature to access victims'...
Read More
Hackers Exploit Zoom’s Remote Control Feature for System Access

“We can summarize this problem into a single sentence: if your job is to deal mostly with payloads, bandwidth may be the hard limit; but if your job is to deal mostly with packet headers, packet rate is the hard limit,” OVHcloud notes.

In April this year, the largest packet rate attack peaked at around 840 million packets per second (pps), breaking the previous record of 809 Mpps set in 2021.

    OVHcloud

OVHcloud has noticed a significant increase in DDoS attacks with packet rates above 100 Mpps in the last six months.

Threat actors usually use DDoS attacks to overwhelm a target’s bandwidth (network-layer attacks) or resources (application-layer attacks), but now packet rate assaults are becoming more common.

“We went from mitigating a few of them each week, to tens or even hundreds per week. Our infrastructures had to mitigate several 500+ Mpps attacks at the beginning of 2024, including one peaking at 620 Mpps. In April 2024, we even mitigated a record-breaking DDoS attack reaching ~840 Mpps,” OVHcloud says.

The cloud provider said that the majority of the traffic in the record attack was made up of TCP ACK packets from around 5,000 IPs.

The company investigated and found that the attackers used MikroTik routers, specifically the CCR1036-8G-2S+ and CCR1072-1G-8S+ models. There are about 100,000 CCR devices connected to the internet, with approximately 40,000 of them being these two models.

According to OVHcloud, if a threat actor can control all these devices and turn them into a botnet, the botnet could potentially generate 2.28 billion packets per second (or Gpps).

   OVHcloud

Following a steady increase in frequency over the past year and a half, large network-layer attacks are also a normal occurrence now, the cloud provider reports.

Mirai botnet was the first to exceed 1 Tbps in 2016. Records of 3.47 Tbps and 2.5 Tbps were set in 2022. DDoS attacks over 1 Tbps are now common.

“In the past 18 months, we went from 1+ Tbps attacks being quite rare, then weekly, to almost daily (averaged out over one week). The highest bit rate we observed during that period was ~2.5 Tbps,” OVHcloud notes.

In October last year, the industry saw some of the biggest Layer 7 DDoS attacks ever. They used the ‘HTTP/2 Rapid Reset’ zero-day vulnerability to launch record-breaking assaults, with the largest reaching 398 million requests per second.

Check Also

ransomware

Bengaluru firm got ransomware attack, Hacker demanded $70,000

Bengaluru’s Whiteboard Technologies Pvt Ltd was hit by a ransomware attack, with hackers demanding a …

Leave a Reply

Your email address will not be published. Required fields are marked *