• Home
  • Cyber Crime
  • Cyber warfare
  • APT
  • Data Breach
  • Deep Web
  • Digital ID
  • Hacking
  • Hacktivism
  • Intelligence
  • Internet of Things
  • Laws and regulations
  • Malware
  • Mobile
  • Reports
  • Security
  • Social Networks
  • Terrorism
  • ICS-SCADA
  • POLICIES
  • Contact me
MUST READ

Law enforcement operations seized BlackSuit ransomware gang’s darknet sites

 | 

Arizona woman sentenced for aiding North Korea in U.S. IT job fraud scheme

 | 

Operation CargoTalon targets Russia’s aerospace with EAGLET malware,

 | 

Unpatched flaw in EoL LG LNV5110R cameras lets hackers gain Admin access

 | 

Koske, a new AI-Generated Linux malware appears in the threat landscape

 | 

Mitel patches critical MiVoice MX-ONE Auth bypass flaw

 | 

Coyote malware is first-ever malware abusing Windows UI Automation

 | 

SonicWall fixed critical flaw in SMA 100 devices exploited in Overstep malware attacks

 | 

DSPM & AI Are Booming: $17.87B and $4.8T Markets by 2033

 | 

Stealth backdoor found in WordPress mu-Plugins folder

 | 

U.S. CISA adds CrushFTP, Google Chromium, and SysAid flaws to its Known Exploited Vulnerabilities catalog

 | 

U.S. CISA urges FCEB agencies to fix two Microsoft SharePoint flaws immediately and added them to its Known Exploited Vulnerabilities catalog

 | 

Sophos fixed two critical Sophos Firewall vulnerabilities

 | 

French Authorities confirm XSS.is admin arrested in Ukraine

 | 

Microsoft linked attacks on SharePoint flaws to China-nexus actors

 | 

Cisco confirms active exploitation of ISE and ISE-PIC flaws

 | 

SharePoint under fire: new ToolShell attacks target enterprises

 | 

CrushFTP zero-day actively exploited at least since July 18

 | 

Hardcoded credentials found in HPE Aruba Instant On Wi-Fi devices

 | 

MuddyWater deploys new DCHSpy variants amid Iran-Israel conflict

 | 
  • Home
  • Cyber Crime
  • Cyber warfare
  • APT
  • Data Breach
  • Deep Web
  • Digital ID
  • Hacking
  • Hacktivism
  • Intelligence
  • Internet of Things
  • Laws and regulations
  • Malware
  • Mobile
  • Reports
  • Security
  • Social Networks
  • Terrorism
  • ICS-SCADA
  • POLICIES
  • Contact me
  • Home
  • Breaking News
  • Internet of Things
  • Malware
  • Security
  • Mirai-based DDoS botnet IZ1H9 added 13 payloads to target routers

Mirai-based DDoS botnet IZ1H9 added 13 payloads to target routers

Pierluigi Paganini October 11, 2023

A Mirai-based DDoS botnet tracked as IZ1H9 has added thirteen new exploits to target routers from different vendors, including D-Link, Zyxel, and TP-Link.

Fortinet researchers observed a new Mirai-based DDoS botnet, tracked as IZ1H9, that added thirteen new payloads to target routers from multiple vendors, including D-Link, Zyxel, TP-Link, and TOTOLINK.

The experts observed a surge in botnet activity in September 2023 and reported that it “has aggressively updated its arsenal of exploits.” The malicious payloads added to this variant target D-Link devices, Netis wireless router, Sunhillo SureLine, Geutebruck IP camera, Yealink Device Management, Zyxel devices, TP-Link Archer, Korenix Jetwave, and TOTOLINK routers.

Fortinet observed a peak exploitation on September 6, reaching tens of thousands of exploitation attempts against affected devices.

Mirai-based DDoS botnet, tracked as IZ1H9

Below is the list of exploit payloads added to the bot:

  • D-Link: CVE-2015-1187, CVE-2016-20017, CVE-2020-25506, and CVE-2021-45382. These critical flaws allow remote attackers to deliver command injection via a crafted request.
  • Netis WF2419: CVE-2019-19356, a Remote Code Execution (RCE) issue through the tracert diagnostic tool because caused by the lack of user input sanitizing.
  • Sunhillo SureLine: CVE-2021-36380
  • Geutebruck products: CVE-2021-33544/33548/33549/33550/33551/33552/33553/33554 arbitrary command execution flaws
  • Yealink Device Management (DM) 3.6.0.20: CVE-2021-27561/27562.
  • TP-Link Archer AX21 (AX1800): CVE-2023-1389  
  • Korenix JetWave wireless AP: CVE-2023-23295
  • CVE-2022-40475/25080/25079/25081/25082/25078/25084/25077/25076/38511/25075/25083 collectively represent a set of related vulnerabilities that focus on TOTOLINK routers.
  • TOTOLINK routers: CVE-2022-40475/25080/25079/25081/25082/25078/25084/25077/25076/38511/25075/25083 

The bot also included a remote code execution exploit on Zyxel EMG3525/VMG1312 before V5.50 and the “/cgi-bin/login.cgi” route, potentially affecting the Prolink PRC2402M router.

Upon exploiting one of the above vulnerabilities, a shell script downloader “l.sh” is downloaded from hxxp://194[.]180[.]48[.]100.

Upon executing the script, it deletes logs and downloads and executes various bot clients to target specific Linux architectures. Then the shell script downloader obstructs network connections on multiple ports by altering the device’s iptables rules

Then the bot bot connects to C2 and wait for commands to execute.

“IZ1H9, a Mirai variant, infects Linux-based networked devices, especially IoT devices, turning them into remote-controlled bots for large-scale network attacks.” reads the analysis published by Fortinet.

The IZ1H9 botnet can also launch brute-force attacks using a set of login credentials included in the code.

The botnet supports multiple DDoS attacks, including UDP, HTTP Flood, UDP Plain, and TCP SYN.

“The exposure of vulnerable devices can result in severe security risks. Despite the availability of patches for these vulnerabilities, the number of exploit triggers remains alarmingly high, often numbering in the thousands.” concludes the analysis. “What amplifies the impact of the IZ1H9 Campaign are the rapid updates to the vulnerabilities it exploits. Once an attacker gains control of a vulnerable device, they can incorporate these newly compromised devices into their botnet, enabling them to launch further attacks like DDoS attacks and brute-force.”

Fortinet strongly recommends that organizations of promptly applying security patches when available and always change default login credentials for devices.

Follow me on Twitter: @securityaffairs and Facebook and Mastodon

Pierluigi Paganini

(SecurityAffairs – DDoS, IZ1H9 Botnet)


facebook linkedin twitter

Cybercrime Hacking hacking news information security news IT Information Security IZ1H9 botnet linux routers malware Mirai Security Affairs Security News

you might also like

Pierluigi Paganini July 26, 2025
Law enforcement operations seized BlackSuit ransomware gang’s darknet sites
Read more
Pierluigi Paganini July 26, 2025
Arizona woman sentenced for aiding North Korea in U.S. IT job fraud scheme
Read more

leave a comment

newsletter

Subscribe to my email list and stay
up-to-date!

    recent articles

    Law enforcement operations seized BlackSuit ransomware gang’s darknet sites

    Cyber Crime / July 26, 2025

    Arizona woman sentenced for aiding North Korea in U.S. IT job fraud scheme

    Intelligence / July 26, 2025

    Operation CargoTalon targets Russia’s aerospace with EAGLET malware,

    Intelligence / July 25, 2025

    Unpatched flaw in EoL LG LNV5110R cameras lets hackers gain Admin access

    Security / July 25, 2025

    Koske, a new AI-Generated Linux malware appears in the threat landscape

    Malware / July 25, 2025

    To contact me write an email to:

    Pierluigi Paganini :
    pierluigi.paganini@securityaffairs.co

    LEARN MORE

    QUICK LINKS

    • Home
    • Cyber Crime
    • Cyber warfare
    • APT
    • Data Breach
    • Deep Web
    • Digital ID
    • Hacking
    • Hacktivism
    • Intelligence
    • Internet of Things
    • Laws and regulations
    • Malware
    • Mobile
    • Reports
    • Security
    • Social Networks
    • Terrorism
    • ICS-SCADA
    • POLICIES
    • Contact me

    Copyright@securityaffairs 2024

    We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept All”, you consent to the use of ALL the cookies. However, you may visit "Cookie Settings" to provide a controlled consent.
    Cookie SettingsAccept All
    Manage consent

    Privacy Overview

    This website uses cookies to improve your experience while you navigate through the website. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities...
    Necessary
    Always Enabled
    Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
    Non-necessary
    Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.
    SAVE & ACCEPT