SecureList

JUNE 2, 2022

Layout of the encrypted data. Packets exchanged with the C2 server contain a header (described in the next table) followed by AES-encrypted data. Initial connection: the generated AES key and its CRC32, encrypted using RSA-2048 with a hardcoded public key. x33x44”). Description. Sample value (in hex). Unknown static value.

Malware 118

Malware Encryption Social Engineering Telecommunications 118

Kali Linux

NOVEMBER 27, 2022

In Secure Kali Pi (2022) , the first blog post in the Raspberry Pi series, we set up a Raspberry Pi 4 with full disk encryption. securekalipi:wlan0 As the documentation states, anything that is not specified uses the default settings, so we simply skip putting anything in between the : that we want to skip. 192.168.42.1:255.255.255.0:securekalipi:wlan0

Firmware 52

Firmware Wireless Passwords VPN 52

eSecurity Planet

JUNE 8, 2023

It can be time consuming to establish these protocols on an organization’s DNS servers, but doing so will provide two key benefits. Email security tools offer features that screen emails for malicious content using antivirus, anti-spam, DNS, attachment, and other analytics.

Firewall 79

Firewall DNS Authentication Malware 79

eSecurity Planet

MARCH 22, 2023

Policies typically will be written documents that detail the requirements that will be enforced, such as password complexity. Virtual Private Network (VPN) : For remote access, remote desktop protocol (RDP) no longer can be considered safe. Instead, organizations should use a virtual private network (VPN) solution.

Firewall 108

Firewall Network Security Penetration Testing Encryption 108

eSecurity Planet

APRIL 26, 2024

Server: Provides powerful computing and storage in local, cloud, and data center networks to run services (Active Directory, DNS, email, databases, apps). Virtual private networks (VPNs): Secure remote user or branch office access to network resources through encrypted connections to firewalls or server applications.

Architecture 118

Architecture Network Security Firewall Risk 118

McAfee

SEPTEMBER 14, 2021

IOCs that could be shared are at the end of this document. The PlugX families we observed used DNS [ T1071.001 ] [ T1071.004 ] as the transport channel for C2 traffic, in particular TXT queries. Another clue that helped us was the use of DNS tunneling by Winnti which we discovered traces of in memory. GET / */[redacted].rar.

Malware 144

Malware DNS Accountability Manufacturing 144

Duo's Security Blog

JANUARY 28, 2022

This, in combination with network encryption, will lay a strong foundation against phishing and other common attack vectors. The memo emphasizes the importance of including cloud-based platforms, applications and systems in the agency zero trust strategy.

Authentication 52

Authentication Government DNS Encryption 52

eSecurity Planet

MARCH 16, 2023

DNS attacks : DNS cache poisoning, or hijacking, redirects a legitimate site’s DNS address and takes users to a malicious site when they attempt to navigate to that webpage. VPN Vulnerabilities Although VPNs create a private tunnel for organizations’ network communications, they can still be breached.

Network Security 108

Network Security Firewall Internet Internet 108

Cisco Security

AUGUST 28, 2023

To be a NOC partner, you must be willing to collaborate, share API (Automated Programming Interface) keys and documentation, and come together (even as market competitors) to secure the conference, for the good of the attendees. Base64 credentials used by Urban VPN to get configuration files. iPhone Mail using IMAP to authenticate.

Wireless 60

Wireless DNS Mobile Technology 60

SecureList

APRIL 27, 2021

It was first publicly documented in 2014, in the aftermath of the Gamma Group hacking incident. On February 24, the National Security Defense Council of Ukraine (NSDC) publicly warned that a threat actor had exploited a national documents circulation system (SEI EB) to distribute malicious documents to Ukrainian public authorities.

Malware 141

Malware Spyware Government Social Engineering 141

SecureList

OCTOBER 19, 2021

In this document, we decided to provide a brief description of the Trickbot modules. Downloaded modules are encrypted, and can be decrypted with the Python script below. It retrieves the DNS names of all the directory trees in the local computer’s forest. This module contains the encrypted embedded module RwDrv.sys.

Banking 139

Banking Passwords VPN Internet 139

SecureList

NOVEMBER 18, 2022

Finally, it is worth mentioning the CVE-2022-34724 vulnerability, which affects Windows DNS Server and can lead to denial of service if exploited. As a result, the attacker can steal confidential data, encrypt critical files on the server to to extort money from the victim, etc. Vulnerability statistics. Attacks on macOS.

Mobile 88

Mobile Malware Ransomware IoT 88

eSecurity Planet

MAY 2, 2024

50,000 DDoS attacks on public domain name service (DNS) resolvers. 553% increase in DNS Flood attacks from 1H 2020 to 2H 2023. DDoS attacks on single networks or websites render them unavailable, but DDoS attacks on DNS resolvers bring down all networks and websites using that DNS resource.

Cybersecurity 120

Cybersecurity DDOS Penetration Testing Passwords 120