Reaper IoT botnet 'only partially mobilised'
Report finds up to two million infected devices have yet to be activated


Despite the Reaper botnet receiving widespread coverage over the past few weeks, it seems it's not as powerful as security researchers first thought, as many of its bots are not actually operating to disable networks.
Although there are between 10,000 and 20,000 bots launching attacks, another two million hosts that have the potential to become part of it have for some reason not been launched, according to a report by Arbor Networks.
"Possible explanations include: misidentification due to flaws in the scanning code, scalability/performance issues in the Reaper code injection infrastructure, or a deliberate decision by the Reaper botmasters to throttle back the propagation mechanism," the company said in its analysis of the threat.
It's likely that Reaper may have been created to form part of a booter/stresser service for the Chinese DDoS-for-hire market, according to the report, as deeper research into the botnet's behaviour revealed that some of its code appears to be based upon the more powerful Mirai IoT malware.
"While Reaper is capable of launching SYN-floods, ACK-floods, HTTP floods, and DNS reflection/amplification attacks, it is likely to have other, yet-to-be-determined DDoS attack capabilities, as well," Arbor's Security Engineering & Response Team (ASERT) said in a blog post.
The Reaper botnet was first discovered by Qihoo 360 Netlab last month and since its discovery, it's been adapted to pose a threat to a range of connected devices including IP-based cameras, routers, storage boxes and Wi-Fi points from vendors including D-Link, TP-Link, Avtech, Netgear, MikroTik, Linksys, and Synology.
Netgear released a statement saying it's continuously adapting its firmware and security patches to make sure products are as protected as well as they can be.
Get the ITPro daily newsletter
Sign up today and you will receive a free copy of our Future Focus 2025 report - the leading guidance on AI, cybersecurity and other IT challenges as per 700+ senior executives
"Netgear appreciates having security concerns brought to our attention and are constantly monitoring our products to get in front of the latest threats," it said. "Being proactive rather than reactive to emerging security issues is a fundamental belief at Netgear."

Clare is the founder of Blue Cactus Digital, a digital marketing company that helps ethical and sustainability-focused businesses grow their customer base.
Prior to becoming a marketer, Clare was a journalist, working at a range of mobile device-focused outlets including Know Your Mobile before moving into freelance life.
As a freelance writer, she drew on her expertise in mobility to write features and guides for ITPro, as well as regularly writing news stories on a wide range of topics.
-
UK crime fighters wrangle “several thousand” potential cyber criminals in DDoS-for-hire honeypot
News The sting follows a recent crackdown on DDoS-for-hire services globally
By Ross Kelly
-
US begins seizure of 48 DDoS-for-hire services following global investigation
News Six people have been arrested who allegedly oversaw computer attacks launched using booters
By Zach Marzouk
-
Will triple extortion ransomware truly take off?
In-depth Operators are now launching attacks with three extortion layers, but there are limitations to this model
By Connor Jones
-
GoDaddy web hosting review
Reviews GoDaddy web hosting is backed by competitive prices and a beginner-friendly dashboard, and while popular, beware of hidden prices
By Daniel Blechynden
-
Japan investigates potential Russian Killnet cyber attacks
News The hacker group has said it’s revolting against the country’s militarism and that it’s “kicking the samurai”
By Zach Marzouk
-
LockBit hacking group to be 'more aggressive' after falling victim to large-scale DDoS attack
News The ransomware group is currently embroiled in a battle after it leaked data belonging to cyber security company Entrust
By Connor Jones
-
Record for the largest ever HTTPS DDoS attack smashed once again
News The DDoS attack lasted 69 minutes and surpassed the previous record of 26 million RPS
By Praharsha Anand
-
Cloudflare unveils new One Partner Program with zero trust at its core
News Cloudflare CEO Matthew Prince says the initiative aims to take the complexity out of zero trust architecture
By Daniel Todd