Security Affairs

MAY 9, 2023

A DDoS botnet dubbed AndoryuBot has been observed exploiting an RCE, tracked as CVE-2023-25717, in Ruckus access points. The activity is associated with a known DDoS botnet tracked as AndoryuBot that first appeared in February 2023. The bot supports multiple DDoS attack techniques and uses SOCKS5 proxies for C2 communications.

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Malwarebytes

FEBRUARY 10, 2023

At the end of January, the Health Sector Cybersecurity Coordination Center warned that the KillNet group is actively targeting the US healthcare sector with distributed denial-of-service (DDoS) attacks. The Cybersecurity and Infrastructure Security Agency (CISA) says it helped dozens of hospitals respond to these DDoS incidents.

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DDOS Healthcare Computers and Electronics Government 96

Security Affairs

NOVEMBER 14, 2022

The malware was employed in cryptocurrency mining campaigns and to launch denial-of-service (DDoS) attacks. KmsdBot supports multiple architectures, including as Winx86, Arm64, and mips64, x86_64, and does not stay persistent to avoid detection. The bot downloads a list of login credentials to use when it scans for open SSH ports.

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DDOS Malware Cryptocurrency Architecture 98

Security Affairs

JULY 22, 2023

Researchers warn of several DDoS botnets exploiting a critical flaw tracked as CVE-2023-28771 in Zyxel devices. Fortinet FortiGuard Labs researchers warned of multiple DDoS botnets exploiting a vulnerability impacting multiple Zyxel firewalls. Mirai botnets are frequently used to conduct DDoS attacks.”

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Security Affairs

NOVEMBER 1, 2021

The botnet was created to launch DDoS attacks and to insert advertisements in the legitimate HTTP traffic of the victims, most of which are in China (96%). The botnet leverages a robust architecture based on a combination of third-party services, P2P, and Command & Control servers. million devices.

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Architecture DDOS Advertising DNS 145

Security Affairs

DECEMBER 15, 2023

The malicious code can target various architectures, it supports both flooder and backdoor capabilities. The primary target of NKAbuse is Linux desktops, however, it can target MISP and ARM architecture. Once exploited, a command is executed on the system to download the initial script. shell script hosted a remote server.

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Malware Architecture Technology DDOS 141

Security Affairs

SEPTEMBER 18, 2024

. “This service enables an entire suite of activities, including scalable exploitation of bots, vulnerability and exploit management, remote management of C2 infrastructure, file uploads and downloads, remote command execution, and the ability to tailor IoT-based distributed denial of service (DDoS) attacks at-scale.”

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IoT Wireless DDOS Architecture 138

Security Affairs

OCTOBER 23, 2018

Security experts from Sophos Labs have spotted a new piece of IoT malware tracked as Chalubo that is attempting to recruit devices into a botnet used to launch DDoS attacks. The IoT malware ran only on systems with an x86 architecture. The script would also download, decrypt, and execute whatever Lua script it finds.

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IoT DDOS Malware Architecture 107

Security Affairs

MARCH 21, 2020

Palo Alto Networks first spotted the Mukashi’s activity on March 12, when the threat actor attempted to download a shell script to the tmp directory, execute the downloaded script, and remove the evidence on a vulnerable device. The bot supports various commands, like Mirai, such as launching DDoS attacks.

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Security Affairs

APRIL 8, 2020

Cybersecurity researchers discovered a new IoT botnet, tracked as Dark Nexux, that is used to launch distributed denial-of-service (DDoS) attacks. Dark Nexux is the name of a new emerging IoT botnet discovered by Bitdefender that is used to launch DDoS attacks. through 8.6). net:80), and then executes them.

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IoT DDOS Advertising Architecture 115

Security Affairs

DECEMBER 1, 2022

This action will later help them download the shared object allowing for the exploitation of the vulnerability. The attacking server that is defined as the master uses this connection to download the shared library exp_lin.so “The first use of the command is activated to receive information about the CPU architecture.

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Malware DDOS Architecture Cryptocurrency 145

SecureList

DECEMBER 14, 2023

Written in Go, it is flexible enough to generate binaries compatible with various architectures. After the vulnerability is exploited, a command is executed on the system to download the initial script. The setup process checks the OS type and, depending on that, it downloads the second stage, which is the actual malware implant.

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Malware Architecture DNS DDOS 143

Security Affairs

OCTOBER 7, 2020

Experts noticed that the malware supports multiple CPU architectures, including x86(32/64), ARM(32/64), MIPS(MIPS32/MIPS-III) and PPC, it is written in the Go open-source programming language. Upon gaining access to the device, the bot downloads one of seven binaries that install the HEH malware. ” concludes the post.

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Architecture IoT Malware Advertising 135

Security Affairs

SEPTEMBER 8, 2024

The attack starts with a shell script that downloads binaries for various architectures (ARM, MIPS, X86), extracts a command-and-control (C2) server from an encrypted configuration, and connects to it. “Analysis of the script download URL’s telemetry reveals a concentrated pattern of infections.

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Malware Telecommunications Encryption DDOS 135

eSecurity Planet

DECEMBER 8, 2023

When a DNS server makes a request to a DNS resolver, the DNS resolver will download and check the public encryption key to verify the authenticity and accuracy of the IP address associated with the requested URL address. DNS Server Hardening DNS server hardening can be very complex and specific to the surrounding architecture.

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DNS DDOS Firewall Architecture 115

Security Affairs

SEPTEMBER 20, 2020

According to the researchers, in the last months of 2019, the botnet was mainly involved in DDoS attacks. The botnet supports the following capabilities: DDoS attack Collecting Bot Information Execute the payload of the specified URL Update the sample from the specified URL Execute system or custom commands. ” file.

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IoT DDOS Architecture Passwords 145

Security Affairs

AUGUST 28, 2023

The malware was employed in cryptocurrency mining campaigns and to launch denial-of-service (DDoS) attacks. KmsdBot supports multiple architectures, including as Winx86, Arm64, and mips64, x86_64, and does not stay persistent to avoid detection. ” reads the report published by Akamai.

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IoT DDOS Architecture Internet 98

SecureList

SEPTEMBER 21, 2023

Dark web services: DDoS attacks, botnets, and zero-day IoT vulnerabilities Of all IoT-related services offered on the dark web, DDoS attacks are worth examining first. See translation I’m the world’s best-known DDoS attacker for hire (getting ahead of myself here). Our advantages: 1.

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IoT DDOS Passwords Malware 133

Security Affairs

MARCH 17, 2021

ZHtrap propagates using four vulnerabilities, experts pointed out that the botnet mainly used to conduct DDoS attacks and scanning activities, while integrating some backdoor features. ZHtrap supports multiple architectures, including x86, ARM, and MIPS.

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Security Affairs

NOVEMBER 11, 2020

Botnet operators monetize their efforts via XMRig, cgmining and with DDoS-for-hire services. . In the first stage of the attack, a payload downloads the other components. The payload is named “pty” followed by a number used to map the architecture. Below some download URL examples: hxxp://159.89.156.190/.y/pty2

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IoT Malware DDOS Architecture 133

Security Affairs

APRIL 1, 2019

The popular expert unixfreaxjp analyzed a new China ELF DDoS’er malware tracked as “Linux/DDoSMan” that evolves from the Elknot malware to deliver new ELF bot. The code seems inspired from multiple source code of China basis DDoS client, like Elknot. Figure 2: The C2 software for Linux DDoS.

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DDOS Malware Encryption Penetration Testing 110

Malwarebytes

FEBRUARY 24, 2022

But the NCSC warns that it is likely that Sandworm is capable of compiling the same or very similar malware for other architectures and firmware. Among the latest attacks on Ukraine was a distributed denial of service (DDoS) attack.

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Malware Firewall Firmware DDOS 145

SecureList

APRIL 13, 2023

Recently we explored the topic of infection methods, including malvertising and malicious downloads. RapperBot: “intelligent brute forcing” RapperBot, based on Mirai (but with a different C2 command protocol), is a worm infecting IoT devices with the ultimate goal to launch DDoS attacks against non-HTTP targets.

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Malware Engineering Advertising Phishing 130

Security Affairs

FEBRUARY 27, 2019

According to Talos, both payloads downloads the same bash script, the first one uses the wget to download the script, while the second one leverages obfuscated Java to invoke bash and download the same bash script with wget. Attackers are likely attempt ing to make the exploit work on a broader variety of platforms.

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Advertising Cryptocurrency Malware DDOS 108

Security Affairs

APRIL 16, 2021

Gafgyt also uses some of the existing exploits (CVE-2017-17215, CVE-2018-10561) to download the next stage payloads, which we will discuss further on. HTTP flooding is a kind of DDoS attack in which the attacker sends a large number of HTTP requests to the targeted server to overwhelm it. Figure 9: Downloaded malicious script.

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Malware DDOS IoT Firmware 131

Security Affairs

JULY 4, 2019

Godlua is a DDoS bot that was already involved in attacks in the wild, such as the one that hit liuxiaobei[.]com “The Bot sample downloads many Lua scripts when executing, and the scripts can be broken down to three categories: execute, auxiliary, and attack.” com domain. The second variant. ” states the analysis.

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DNS Malware Advertising DDOS 107

Security Affairs

APRIL 25, 2023

” The Mirai botnet is exploiting the issue to gain access to the device and downloads the malicious payload for the targeted architecture. The Mirai botnet that is behind the attacks observed by ZDI is focused on launching DDoS attacks, it has the capability to target Valve Source Engine (VSE).

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DDOS Engineering Firmware Architecture 98

Security Affairs

JUNE 15, 2021

Upon compromising an IoT device, the malicious code connects to the Cyberium domain to retrieve a bash script that is used as a downloader similarly to other Mirai variants. The botnet was designed to carry out distributed denial of service (DDoS) attacks like the original Mirai bot.

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Malware Internet Internet DDOS 139

Security Affairs

APRIL 28, 2020

The first version spotted by TrendMicro includes a DDoS script that could be used by botmaster to set-up DDoS for-hire service offered on the dark web. Based on our findings, there are some similarities in both techniques and architectures with another cybercrime group, which appeared in the wild around 2012, most probably Romanian.

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Architecture Malware Hacking DDOS 133

Security Affairs

SEPTEMBER 29, 2018

According to experts from Avast, the Torii bot has been active since at least December 2017, it could targets a broad range of architectures, including ARM, MIPS, x86, x64, PowerPC, and SuperH. The Torii IoT botnet stands out for the largest sets of architectures it is able to target. ” reads the analysis published by Avast.

IoT 110

IoT Architecture Advertising DDOS 110

eSecurity Planet

AUGUST 7, 2024

Multi-tenant cloud: A public cloud architecture feature that allows multiple clients to share the same environment while keeping their data segregated. Visibility: Maintain complete insight into your cloud architecture to effectively manage and secure dynamic resources. Click the image below to download and modify your copy.

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Architecture DDOS Encryption Data breaches 105

Security Affairs

JUNE 22, 2023

The attack chain commences with the exploitation of one of the above issues, then the threat actor tries to download a shell script downloader from a remote server. Upon executing the script, it would download and execute the proper bot clients for the specific Linux architectures: hxxp://185.225.74[.]251/armv4l

IoT 98

IoT Malware Encryption DDOS 98

SecureList

JANUARY 23, 2023

The most common attack scenarios here are: attacks on employees (social engineering), attacks on IT infrastructure (DDoS), as well as attacks on critical infrastructure. This gives SOC a goal: to enhance the SOC team, architecture, and operations for better performance.

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Government Media Social Engineering Ransomware 124

Security Boulevard

JUNE 2, 2022

Multiple-extortion attacks that utilize data theft, distributed denial of service (DDoS) attacks, customer communications, and more as layered extortion tactics to increase ransom payouts. Use a zero trust architecture to secure internal applications, making them invisible to attackers. About ThreatLabz.

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Ransomware Architecture Manufacturing Encryption 105

eSecurity Planet

NOVEMBER 18, 2021

The victim downloads the file and double-clicks to open it, which triggers the code in the background. REST is a standardized client-server architecture for APIs where resources can be fetched at specific URLs. too much depth in your query can result in overloads leading to self-inflicted DDoS (distributed denial-of-service).

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Penetration Testing Social Engineering Software Wireless 134

Security Boulevard

JANUARY 11, 2024

These families are a particularly formidable threat to the public sector — in the form of distributed denial-of-service (DDoS) attacks. For instance, threat actors can weaponize IoT botnets to execute DDoS attacks targeting essential services and government websites.

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IoT Malware Education Government 75

CyberSecurity Insiders

NOVEMBER 11, 2021

However, there is a difference between the Mirai malware and the new malware variants using Go, including differences in the language in which it is written and the malware architectures. It also has different DDoS functionality. Malware payload download link. Malware payload download link. Malware payload download link.

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Malware IoT Firmware Authentication 85