Security Boulevard

JANUARY 17, 2024

Figure 1 — Cloudflare RBI Diagram The primary focus of RBI is to prevent user interactions with web-based malware such as cross-site scripting (XSS), drive-by downloads, and various forms of malicious JavaScript. Antivirus Inspection Not all RBI products will prioritize this time factor. This can be due to encryption or even size.

DNS 64

DNS Penetration Testing Passwords Encryption 64

eSecurity Planet

DECEMBER 8, 2023

Domain name service (DNS) attacks threaten every internet connection because they can deny, intercept, and hijack connections. With the internet playing an increasing role in business, securing DNS plays a critical role in both operations and security. TLS and HTTPS inherently create secured and encrypted sessions for communication.

DNS 111

DNS DDOS Firewall Architecture 111

SecureList

DECEMBER 1, 2023

For most implants, the threat actor uses similar implementations of DLL hijacking (often associated with ShadowPad malware) and memory injection techniques, along with the use of RC4 encryption to hide the payload and evade detection. libssl.dll or libcurl.dll was statically linked to implants to implement encrypted C2 communications.

Malware 91

Malware Ransomware Encryption Energy and Utilities 91

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 113

Malware Encryption Social Engineering Telecommunications 113

Security Affairs

OCTOBER 12, 2019

. “The first of FIN7’s new tools is BOOSTWRITE – an in-memory-only dropper that decrypts embedded payloads using an encryption key retrieved from a remote server at runtime. The messages sent to the victims were also dropping the backdoor DNSbot that primarily operates over DNS traffic. Before decrypting the embedded PE32.DLLs

Identity Theft 76

Identity Theft Hacking Advertising DNS 76

SecureList

MAY 17, 2021

It may also use social engineering to convince victims to download a smartphone app. Bizarro is distributed via MSI packages downloaded by victims from links in spam emails. Once launched, Bizarro downloads a ZIP archive from a compromised website. These images are stored in the user profile directory in an encrypted form.

Banking 139

Banking Social Engineering Malware Engineering 139

Fox IT

JUNE 2, 2020

It should be noted that in very early versions of the loader binaries (2342C736572AB7448EF8DA2540CDBF0BAE72625E41DAB8FFF58866413854CA5C), the developers were using the Windows BITS functionality in order to download the backdoor. Before proceeding to the technical analysis part, it is worth mentioning that the strings are not encrypted.

Malware 48

Malware DNS Architecture Backups 48

Security Affairs

APRIL 9, 2019

The origin of the infection chain is a simple LNK file, a technique originally adopted by state sponsored and advanced actors, designed to download and run a powershell file named “rdp.ps1” from a remote location through the command: C:WindowsSystem32WindowsPowerShellv1.0powershell.exe -ExecutionPolicy Bypass -Windo 1 $wm=[Text.Encoding]::UTF8.

Malware 72

Malware Advertising DNS Antivirus 72

SecureList

NOVEMBER 26, 2021

The attackers obtain initial access to a system by sending a spear-phishing email to the victim containing a Dropbox download link. If the victim opens the document, Microsoft Office downloads the script and runs it using the MSHTML engine. After this, they were tricked into downloading previously unknown malware.

Malware 86

Malware Banking Energy and Utilities Accountability 86

eSecurity Planet

FEBRUARY 16, 2021

Adware, also known as malvertising , is a type of malware that downloads or displays advertisements to the user interface. Users sometimes unknowingly infect themselves with adware installed by default when they download and install other applications. Install an antivirus solution that includes anti-adware capabilities.

Malware 105

Malware Adware Spyware Antivirus 105

eSecurity Planet

MARCH 14, 2023

Encryption will regularly be used to protect the data from interception. In the broadest sense, defense in depth uses: Data security : protects data at rest and in transit such as encryption, database security, message security, etc. endpoint security (antivirus, Endpoint Detection and Response, etc.),

Network Security 93

Network Security Firewall Penetration Testing Encryption 93

SecureList

APRIL 24, 2023

Introduction We introduced Tomiris to the world in September 2021, following our investigation of a DNS-hijack against a government organization in the Commonwealth of Independent States (CIS). Backdoors, whose feature set is typically limited to reconnaissance, command execution, file download and file upload.

Malware 89

Malware DNS Government Software 89

eSecurity Planet

SEPTEMBER 29, 2021

Adapt and update as malware continues to evolve and become more sophisticated to evade detection by antimalware/antivirus programs. Checks downloads, installs, and executables for viruses and threats. Free download that runs on the desktop. This tool identifies which ransomware has encrypted the data. Scan scheduling.

Ransomware 108

Ransomware VPN Backups Malware 108

Security Affairs

DECEMBER 5, 2020

. “In strict accordance with DeathStalker’s traditions, the implant will try to evade detection or sandboxes execution with various tricks such as detecting mouse movements, filtering the client’s MAC addresses, and adapting its execution flow depending on detected antivirus products.”

DNS 88

DNS Phishing Antivirus Encryption 88

Security Boulevard

JUNE 15, 2023

Enter Mystic Stealer, a fresh stealer lurking in the cyber sphere, noted for its data theft capabilities, obfuscation, and an encrypted binary protocol to enable it to stay under the radar and evade defenses. Loader refers to the ability to download and execute additional malware payloads. Polymorphic string obfuscation.

Cryptocurrency 52

Cryptocurrency Password Management Malware DNS 52

eSecurity Planet

MARCH 22, 2023

Similarly, spoofed domain name system (DNS) and IP addresses can redirect users from legitimate connections to dangerous and malicious websites. Endpoint Security: Antivirus , anti-spyware , endpoint detection and response (EDR), and other controls should be deployed to secure the endpoint against compromise.

Firewall 105

Firewall Network Security Penetration Testing Encryption 105

SecureList

MAY 31, 2021

We believe that the most significant aspect of the Ecipekac malware is that the encrypted shellcodes are inserted into digitally signed DLLs without affecting the validity of the digital signature. It then downloads and installs the miner. Ransomware encrypting virtual hard disks. macOS developments.

Malware 94

Malware Adware Encryption Architecture 94

eSecurity Planet

FEBRUARY 8, 2021

Backoff malware, which also dates back to 2013, scrapes memory for track data, logs keystrokes, and connects to a command and control server to upload stolen data and download additional malware. Point-to-point encryption: P2PE and tokenization, Miles said, are the one-two punch of an approach to card data security called data devaluation.

Retail 52

Retail Encryption Malware Artificial Intelligence 52

SecureList

APRIL 27, 2021

Although Lyceum still prefers taking advantage of DNS tunneling, it appears to have replaced the previously documented.NET payload with a new C++ backdoor and a PowerShell script that serve the same purpose. The contents are disguised as GIF image files, but contain encrypted commands from the C2 server and command execution results.

Malware 138

Malware Spyware Government Social Engineering 138