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Showing posts with label IoT. Show all posts

Customer-Facing Enterprise Services Bearing the Majority of DDoS Attacks


Out of 8.4 million DDoS attacks recorded in 2019 alone, two-thirds of customer-facing enterprise systems bear the brunt of it all. Aimed for disrupting online services, a surge of illegitimate traffic is produced by PCs, Internet of Things (IoT), and a few other gadgets which send many requests, and these questions, in the long run, overwhelm a service. 

Certified users are then incapable to get through. There are various types of DDoS that target specific parts of a service, yet resource exhaustion and HTTP floods, in general, tend to be common. Slave systems, incorporating gadgets infected with botnet-based malware, are utilized to dispatch DDoS attacks, of which threat actors are known to offer DDoS-for-hire services in the web's underground for a pittance. As per Netscout's most recent report on the topic, DDoS attacks keep on being a thistle in the side of big business organizations and the attack frequency is on the sharp ascent. 

Netscout's research, says that there has been an expansion of 87% in exploit endeavors between the second half of 2018 and 2019. Also, DDoS attack frequency worldwide has expanded by 16%, with 16 DDoS attempts occurring almost every minute. Wired and mobile communications, data processing, and hosting providers are the most widely recognized targets; there has likewise been an uptick in DDoS campaigns against satellite communications, chemical manufacturing, and trades including computer equipment sellers and vehicle vendors. 

With regard to quality, the most powerful DDoS attack recorded by the organization during H2 2019 was 622 Gbps. Be that as it may, as verified by Netscout, such attacks can, by and large, be considered "overkill" and are known to draw the attention of law enforcement; and in that capacity, attacks are presently by and large within the 100 - 200 Gbps range. This year, it is 'forecasted' that up to 20.4 billion IoT devices will be connected with the Internet. 

While these devices - including mobile gadgets, intelligent home appliances, and smart speakers - are convenient, security isn't generally at the cutting edge of development lifecycles and there are as yet numerous situations when default, hardcoded certifications and vulnerabilities are misused to add them to botnets. 


Nonetheless in the meantime, legacy IoT devices will keep on adding to the issue of DDoS attacks taking place across the globe, as they won't really be the beneficiaries of improving security standards.

Bot List Containing Telnet Credentials for More than 500,000 Servers, Routers and IoT Devices Leaked Online


This week, a hacker published a list on a popular hacking forum containing Telnet credentials for over 515,000 servers, home routers and IoT (Internet of Things) "smart" devices. The massive list which reportedly was concluded by browsing the whole internet in search of devices that left their Telnet port exposed, included IP addresses of all the devices, username and password for the Telnet service and a remote access protocol that can be employed to control devices over the internet.

After scanning the Internet in search of devices exposing their Telnet port, the hacker attempts to use either factory-set default usernames and passwords or custom but guessable combinations, as per the statements by the leaker himself.

These lists, generally kept private – are known as 'bot lists' that are built after hackers scan the Internet and then employed them to connect to the devices and install malware. Sources say that although there have been some leaks in the past, this one is recorded as the biggest leak of Telnet passwords till date.

As per the reports of ZDNet, the list was made available online by one of a DDoS-for-hire (DDoS booter) service's maintainer. There's a probability that some of these devices might now run on a different IP address or use other login credentials as all the leaked lists are dated around October-November 2019. Given that using any of the listed username and password to access any of the devices would be illegal, ZDNet did not use it. Therefore, they were not able to comment on the validity of these credentials.

A security expert in the field of IoT, requesting for anonymity, tells that even if some of the listed credentials are invalid by the time for devices now have a new IP address or password. However, the listings still hold a lot of value for a skillful and talented attacker who can possibly use the present information in the list to identify the service provider and hence update the list with the current IP addresses.

Certain authentic and verified security researchers are given access to the list of credentials as they volunteered for it.

Hide and Seek Iot Botnet Increasing Infection Capabilities with New Vectors



The Hide and Seek IoT botnet has been updated to act against the Android devices and the criminal group behind its advancement and development has been seen to include a new functionality in recurring incremental optimizations to the fundamental engine.

The Android infections appear to be caused not by focusing on specific vulnerabilities, rather concentrating on maltreatment of the Android Debug Bridge (ADB) option. As a matter of course this is turned-off however at times users might need to turn it on.

The IoT botnet has been spotted to have added around 40 000 gadgets to its stockpile, the infected devices are for the most part from China, Korea and Taiwan. Numerous Android devices are currently part of the home infrastructure — phones, tablets, televisions and various peripherals. This is the motivation behind why attacks utilizing it are exceptionally viewed as critical.

Its samples concentrate on the devices that have set the ADB option on either as a matter of course or by the users themselves. At the point when this capacity is empowered the devices are uncovered as this opens a network port accessing remote connections. Malignant administrators have been spotted to perform unauthenticated login endeavors — utilizing either default passwords or 'brute forcing the devices'.

The attacks likewise prompt the conclusion that the criminal collective behind the botnet is always attempting to update its features. The tremendously expanded number of infected devices is apparent that the botnet is gaining more energy. Botnets are known to be quite efficient when it comes to launching conveyed denial-of-service attacks (DDoS) which can render sites and PC systems non-working.

Chief Security Researcher at Bitdefender Alex Balan said that the botnet's purpose for the time being gives off an impression of being to increase its size and nothing more.
Despite the fact that it bolsters directions for data exfiltration and code execution the researchers have not seen them to be utilized by the botnet and additionally, there is no module for propelling dispersed denial-of-service attacks, an essential technique for botnet monetization.

New report says IoT adoption heightens cybersecurity threat

A new report by Navigant Research says that due to the increasing adoption of Internet of Things (IoT) devices and systems, threats to cybersecurity are also increasing as attackers are given more numbers of “vectors and surfaces” to target.

The report looks at the state of IoT as a whole, not just its utilities, and addresses questions such as common vulnerabilities present in IoT settings, strategies for cybersecurity, global revenue forecast on IoT security, etc. It also examines regulatory frameworks shaping the market and steps that can be taken to minimize risk.

Oracle Chairman, Larry Ellison, says that companies are losing this cyber war and that, “Make no mistake, it’s a war.”

“The mushrooming number of IoT devices being deployed by utilities and other enterprises carries an obvious and growing security risk,” said Neil Strother, principal research analyst with Navigant Research. “Smart managers need a comprehensive strategy to stay ahead of potentially devastating threats to IoT assets.”

He added that managers can no longer rely on the “old-school reactive” approach but must instead adopt “latest proactive and predictive tools and methodologies to keep devices and systems safe.”

The report itself is aimed at utility security managers, enterprises, IoT cybersecurity solution vendors, investor groups, regulators, and other stakeholders.