Krebs on Security

MARCH 28, 2021

Oddly, none of the several dozen antivirus tools available to scan the file at Virustotal.com currently detect it as malicious. Watson said the Krebsonsecurity file will attempt to open up an encrypted connection between the Exchange server and the above-mentioned IP address, and send a small amount of traffic to it each minute.

Hacking 347

Hacking Cybercrime DNS Antivirus 347

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 99

DNS DDOS Firewall Architecture 99

SecureList

JUNE 5, 2023

It is known to use the technique of querying DNS servers to obtain the base64-encoded URL in order to receive the next stage of another malware family currently distributed by Satacom. The encrypted data is stored inside the malicious payload. To do so, it performs a DNS request to don-dns[.]com com don-dns[.]com

Cryptocurrency 79

Cryptocurrency DNS Malware Encryption 79

Security Boulevard

JANUARY 17, 2024

RBI solutions typically allow the configuration of file upload and download profiles, restricting the types of files that can be submitted or retrieved from websites based on multiple factors such as file extension, size, entropy/encryption of data, signatures, site reputation, and more. This can be due to encryption or even size.

DNS 62

DNS Penetration Testing Passwords Encryption 62

Vipre

JANUARY 25, 2021

Thus, an antivirus is the most important security tool that everyone must have to protect themselves from viruses, malware, trojans, and similar cyber threats. Thus, an antivirus is the most important security tool that everyone must have to protect themselves from viruses, malware, trojans, and similar cyber threats. Ad Blockers.

Identity Theft 40

Identity Theft Backups VPN Antivirus 40

Krebs on Security

NOVEMBER 11, 2019

For instance, included in the Pastebin files from Orvis were plaintext usernames and passwords for just about every kind of online service or security product the company has used, including: -Antivirus engines. DNS controls. Encryption certificates. Data backup services. Multiple firewall products. Linux servers. Cisco routers.

Retail 169

Retail Passwords Wireless Backups 169

SecureList

OCTOBER 25, 2023

It comes equipped with a built-in TOR network tunnel for communication with command servers, along with update and delivery functionality through trusted services such as GitLab, GitHub, and Bitbucket, all using custom encrypted archives. The malware executable file is placed in /tmp directory with a random name.

Malware 110

Malware DNS Encryption Cryptocurrency 110

eSecurity Planet

MAY 25, 2022

This equipment usually cannot be protected by antivirus solutions or device-specific firewalls. These solutions can, like antivirus software, use signature-based technology to identify known malware attacks, but many new IDS and IPS also incorporate anomaly-based algorithms often boosted by artificial intelligence (AI). IDS vs. IPS.

Firewall 93

Firewall Wireless Software Antivirus 93

Security Boulevard

MARCH 3, 2023

MalVirt loaders use multiple techniques to evade detection by antivirus software, endpoint detection and response (EDR) software, and other common security tools. It generates encrypted traffic to multiple domains hosted on different IP addresses through different hosting companies. Next-gen protective DNS.

Phishing 57

Phishing DNS Malware Antivirus 57

Security Boulevard

MAY 17, 2023

Most of these steps could’ve been blocked with the aid of DNS protection. It was an old strain that would normally be detected by most antivirus and endpoint detection and response (EDR) vendors. The process involves encryption and decryption prior to verifying transactions.

Data breaches 52

Data breaches DNS Malware Phishing 52

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 94

Malware Ransomware Encryption Energy and Utilities 94

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 116

Malware Encryption Social Engineering Telecommunications 116

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. ” concludes the report.

Identity Theft 74

Identity Theft Hacking Advertising DNS 74

SecureList

MAY 17, 2021

Bizarro gathers the following information about the system on which it is running: Computer name; Operating system version; Default browser name; Installed antivirus software name. The first thing the backdoor does is remove the DNS cache by executing the ipconfig /flushdns command. Bizarro uses the ‘ Mozilla/4.0 Windows NT 5.0′

Banking 140

Banking Social Engineering Malware Engineering 140

Fox IT

JUNE 2, 2020

Before proceeding to the technical analysis part, it is worth mentioning that the strings are not encrypted. Any received files from the command and control server are sent in an encrypted format. As with the previous Team9 loader variant, the command and control server sends back the binary files in an encrypted format.

Malware 48

Malware DNS Architecture Backups 48

eSecurity Planet

FEBRUARY 4, 2022

Antivirus Software WiFi 6 Routers Virtual Private Networks Password Managers Email Security Software Web Application Firewall Bot Management Software. Antivirus Software. Also Read: 4 Best Antivirus Software of 2022. Key Features of Antivirus Software. Scheduled scans Encryption Identity theft protection.

Internet 132

Internet Internet Software Antivirus 132

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 62

Firewall DNS Authentication Malware 62

Security Affairs

APRIL 9, 2019

The installed payload actually is a Base64 encoded PE32 file, file-lessly stored within the registry hive to avoid antivirus detection. Also, the attacker behind this sample leans on the Dynamic DNS service “warzonedns.com”, pointing to the 213.183.58[.10 Figure 5: Final payload written in the registry key in base64 Format.

Malware 69

Malware Advertising DNS Antivirus 69

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.), for unauthorized access.

Network Security 79

Network Security Firewall Penetration Testing Encryption 79

eSecurity Planet

FEBRUARY 16, 2021

Install an antivirus solution that includes anti-adware capabilities. If your antivirus software fails to notice a new strain, you can reinstall the browser. While this sensitive payment data is only available for milliseconds before passing the encrypted numbers to back-end systems, attackers can still access millions of records.

Malware 104

Malware Adware Spyware Antivirus 104

Webroot

JUNE 21, 2021

It may be as simple as the deployment of antivirus plus backup and recovery applications for your end users, or a more complex approach with security operations center (SOC) tools or managed response solutions coupled with network security tools such as DNS and Web filtering, network and endpoint firewalls, VPNs, backup and recovery and others.

Backups 120

Backups DNS Ransomware Antivirus 120

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. Example Mystic Stealer constant obfuscation technique Encrypted binary custom protocol. All data is encrypted with RC4.

Cryptocurrency 52

Cryptocurrency Password Management Malware DNS 52

Security Affairs

FEBRUARY 4, 2021

“The encryption algorithm implemented in this botnet and the process of obtaining C2 are nested in layers, like Russian nesting dolls.For this reason we named it Matryosh.” The Matryosh initially decrypts the remote hostname and uses the DNS TXT request to obtain TOR C2 and TOR proxy, then it connects with the TOR proxy.

DDOS 126

DDOS DNS Antivirus Malware 126

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 84

DNS Phishing Antivirus Encryption 84

SecureList

NOVEMBER 26, 2021

In June, more than six months after DarkHalo had gone dark, we observed the DNS hijacking of multiple government zones of a CIS member state that allowed the attacker to redirect traffic from government mail servers to computers under their control – probably achieved by obtaining credentials to the control panel of the victims’ registrar.

Malware 89

Malware Banking Energy and Utilities Accountability 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. Products range from antivirus protection that also picks up ransomware, to full security suites that bundle in AV, ransomware protection and a lot more. DNS filtering. Norton’s Key Features.

Ransomware 98

Ransomware VPN Backups Malware 98

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 92

Firewall Network Security Penetration Testing Encryption 92

eSecurity Planet

FEBRUARY 8, 2021

UDPoS malware, only recently discovered by Forcepoint researchers, poses as a LogMeIn service pack and uses DNS requests to transfer stolen data to a command and control server. 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

eSecurity Planet

DECEMBER 3, 2021

Russian software engineer Eugene Kaspersky’s frustration with the malware of the 80s and 90s led to the founding of antivirus and cybersecurity vendor Kaspersky Lab. Graham Cluley started as a videogame developer and antivirus programmer three decades ago before serving in senior roles at Sophos and McAfee.

Accountability 130

Accountability Cybersecurity Penetration Testing InfoSec 130

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. Ransomware encrypting virtual hard disks. When this technique is used, some security solutions cannot detect these implants.

Malware 97

Malware Adware Encryption Architecture 97

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). The following map shows the countries where we detected Tomiris targets (colored in green: Afghanistan and CIS members or ratifiers).

Malware 92

Malware DNS Government Software 92

eSecurity Planet

NOVEMBER 18, 2021

The Clearswift solution incorporates inbound threat protection (Avira, Sophos or Kaspersky antivirus ), an optional sandbox feature, data loss prevention technology to remove threats from messages and files, a multi-layer spam defence mechanism (including SPF, DKIM, DMARC), multiple encryption options, and advanced content filtering features.

Phishing 117

Phishing Malware Engineering Ransomware 117

eSecurity Planet

SEPTEMBER 26, 2023

Physical appliances provide functionality for routing wide area networks (WANs), stateful firewalls, SD-WANs, NGFW, antivirus, intrusion prevention services (IPS), and unified threat management (UTM) capabilities for local networks.

Firewall 84

Firewall Software Antivirus Internet 84

ForAllSecure

MARCH 24, 2021

That meant I tested the release candidates -- not the final product you’d buy in the stores - for consumer-grade antivirus programs, desktop firewalls, and desktop Intrusion detection systems. Not only do I get a much faster time to market, I don’t have to worry about rolling my own encryption. Just don’t.

Software 52

Software Passwords Internet Internet 52

ForAllSecure

MARCH 24, 2021

That meant I tested the release candidates -- not the final product you’d buy in the stores - for consumer-grade antivirus programs, desktop firewalls, and desktop Intrusion detection systems. Not only do I get a much faster time to market, I don’t have to worry about rolling my own encryption. Just don’t.

Software 52

Software Passwords Internet Internet 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 139

Malware Spyware Government Social Engineering 139