CyberSecurity Insiders

FEBRUARY 16, 2023

So, to avoid such troubles from file encrypting malware, the following are the steps to follow to protect backups from being corrupted with encryption- Update- It is a known fact that back-up systems are the first to receive OS updates and so admins should subscribe to automatic updates for backup software.

Backups 116

Backups Ransomware DNS Encryption 116

Hacker Combat

JULY 5, 2021

A new malicious software (ransomware) variant that leverages Golang has been released. This malicious software has the same features as FiveHands and DeathRansom/HelloKitty. This malicious software has the same features as FiveHands and DeathRansom/HelloKitty. It also uses the command line reversal “-key.”

Ransomware 132

Ransomware DNS Software Encryption 132

Cisco Security

AUGUST 11, 2021

We looked at REvil, also known as Sodinokibi or Sodin, earlier in the year in a Threat Trends blog on DNS Security. In it we talked about how REvil/Sodinokibi compromised far more endpoints than Ryuk, but had far less DNS communication. Figure 1-DNS activity surrounding REvil/Sodinokibi. Creating a mutex. Deleting backups.

Ransomware 130

Ransomware DNS Encryption Backups 130

Krebs on Security

APRIL 4, 2024

A cybercrook who has been setting up websites that mimic the self-destructing message service privnote.com accidentally exposed the breadth of their operations recently when they threatened to sue a software company. A review of the passive DNS records tied to this address shows that apart from subdomains dedicated to tornote[.]io,

Phishing 222

Phishing Cryptocurrency DDOS Internet 222

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 113

DNS DDOS Firewall Architecture 113

eSecurity Planet

JULY 25, 2022

The domain name system (DNS) is basically a directory of addresses for the internet. Your browser uses DNS to find the IP for a specific service. For example, when you enter esecurityplanet.com, the browser queries a DNS service to reach the matching servers, but it’s also used when you send an email. DNS spoofing or poisoning.

DNS 137

DNS Encryption Penetration Testing Architecture 137

eSecurity Planet

SEPTEMBER 17, 2021

A significant part of hacking consists of diverting the function of existing systems and software, and hackers often use legitimate security tools to perform cyber attacks. The software creates connections (using Cobalt Strike servers) to attack networks. The beacon is the client. A New Variant of Cobalt Strike.

DNS 119

DNS Malware Software Security Awareness 119

CyberSecurity Insiders

JANUARY 6, 2022

From hardware or software issues and hidden backdoor programs to vulnerable process controls, weak passwords, and other human errors, many problems can put your transactions at risk and leave the door open to cybercriminals. This only takes a few clicks, because an SSL certificate is a text file with encrypted data. Source; Pexels.

Encryption 134

Encryption Identity Theft Authentication Data breaches 134

Identity IQ

MARCH 9, 2023

Finally, install security software on your device to protect yourself from future attacks. Use a VPN A VPN encrypts your traffic with military-grade encryption. Keep Your Software Up to Date Making sure your operating system and your software are up to date is important for security.

VPN 98

VPN Antivirus Identity Theft DNS 98

Security Affairs

JANUARY 29, 2023

If you want to also receive for free the newsletter with the international press subscribe here.

DNS 88

DNS Data breaches Hacking Backups 88

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. It is downloaded from a website that appears to mimic a software portal that allows the user to download their desired (often cracked) software for free.

Cryptocurrency 88

Cryptocurrency DNS Malware Encryption 88

Security Affairs

SEPTEMBER 25, 2022

Every week the best security articles from Security Affairs free for you in your email box. If you want to also receive for free the newsletter with the international press subscribe here. gov adds more Chinese Telecom firms to the Covered List Imperva blocked a record DDoS attack with 25.3

Cryptocurrency 86

Cryptocurrency Data breaches DNS DDOS 86

eSecurity Planet

MAY 25, 2022

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). The most significant barrier to visibility is encryption. These solutions also tend to be more expensive.

Firewall 109

Firewall Wireless Software Antivirus 109

Krebs on Security

MARCH 28, 2021

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. I’d been doxed via DNS. Organizations Newly Hacked Via Holes in Microsoft’s Email Software. At Least 30,000 U.S.

Hacking 357

Hacking Cybercrime DNS Antivirus 357

Security Affairs

JULY 21, 2023

Cloud Software Group strongly urges affected customers of NetScaler ADC and NetScaler Gateway to install the relevant updated versions as soon as possible.” The Citrix Cloud Software Group is strongly urging affected customers to install the relevant updated versions as soon as possible.

VPN 81

VPN Cyber Attacks DNS Software 81

SecureWorld News

SEPTEMBER 7, 2023

Quantum computing poses a potential threat to current cybersecurity practices, which are based on encryption algorithms that can be broken by quantum computers. The next practical steps for the cybersecurity industry are to monitor NIST's progress and watch for these finalized versions, as well as for production software library support.

Encryption 94

Encryption Technology Risk Architecture 94

Hot for Security

MAY 26, 2021

Like most ransomware variants, Conti typically steals victims’ files and encrypts the servers and workstations in an effort to force a ransom payment from the victim,” the agency notes. Once Conti actors deploy the ransomware, they may stay in the network and beacon out using Anchor DNS.”.

Healthcare 111

Healthcare Ransomware System Administration DNS 111

SecureList

JUNE 3, 2024

The common methods for analyzing an iOS mobile infection are either to examine an encrypted full iOS backup or to analyze the network traffic of the affected device. Recently, we found a new macOS malware family that was piggybacking the cracked software in order to steal crypto wallets.

Banking 82

Banking Malware Computers and Electronics Mobile 82

Security Affairs

FEBRUARY 18, 2024

CISA: hackers breached a state government organization Russia-linked Turla APT uses new TinyTurla-NG backdoor to spy on Polish NGOs US Gov dismantled the Moobot botnet controlled by Russia-linked APT28 A cyberattack halted operations at Varta production plants North Korea-linked actors breached the emails of a Presidential Office member Nation-state (..)

Cybercrime 98

Cybercrime Ransomware Malware Data breaches 98

SecureWorld News

MARCH 29, 2024

Cybercriminals can then exploit the compromised device for various purposes, such as stealing personal information, conducting financial fraud, recruiting it into a botnet, or encrypting data and holding it for ransom. Its authors created cloned web pages offering to download popular free software, such as the WinSCP file manager.

Cybercrime 85

Cybercrime Advertising Engineering Antivirus 85

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 119

Malware DNS Encryption Cryptocurrency 119

Security Affairs

JUNE 18, 2020

They use DNS tunneling for stealthier C&C communications, and place execution guardrails on the malicious components to hide the malware from security researchers.” Experts also observed attackers using a DNS downloader that was designed for long-term, covert access to the target machine.

DNS 81

DNS Advertising Spyware Software 81

eSecurity Planet

MARCH 14, 2022

Cobalt Strike – now owned by HelpSystems – provides various packages and tools to detect outdated software, generate malware , test endpoints , or run spear phishing campaigns that maximize success rate. It’s a pretty clever way to hide malicious instructions using DNS entries and some obfuscation algorithm the Beacon can decode.

Energy and Utilities 131

Energy and Utilities DNS Penetration Testing Ransomware 131

Chicago CyberSecurity Training

JUNE 26, 2023

Malware Distribution: Attackers can inject malicious software into public Wi-Fi networks so that when someone connects, their devices are infected. Eavesdropping: Public Wi-Fi networks often lack encryption or any protection at all. Ensure your devices have updated security software and OS vulnerability patches installed.

Identity Theft 52

Identity Theft VPN Education Malware 52

Security Boulevard

MARCH 3, 2023

To pull off these scams, phishers purchase ads that appear to represent well-known companies, brands, and software. MalVirt loaders use multiple techniques to evade detection by antivirus software, endpoint detection and response (EDR) software, and other common security tools. Next-gen protective DNS.

Phishing 57

Phishing DNS Malware Antivirus 57

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 106

Malware Ransomware Encryption Energy and Utilities 106

Security Affairs

MAY 6, 2023

Twitter confirmed that a security incident publicly exposed Circle tweets FBI seized other domains used by the shadow eBook library Z-Library WordPress Advanced Custom Fields plugin XSS exposes +2M sites to attacks Fortinet fixed two severe issues in FortiADC and FortiOS Pro-Russia group NoName took down multiple France sites, including the French (..)

Data breaches 95

Data breaches Malware Mobile Spyware 95

eSecurity Planet

AUGUST 13, 2021

They both use Perfect Forward Secrecy , which automatically changes encryption keys on a recurring basis to prevent data from being decrypted if other components of the key exchange are compromised. Thankfully, ExpressVPN doesn’t log sensitive details like IP addresses, browsing history, traffic destination/metadata, or DNS queries.

VPN 109

VPN Encryption Internet Internet 109

eSecurity Planet

APRIL 30, 2024

Domain Name System (DNS) servers: Translate domain names to IP addresses. Navigate to the control or configuration panel of your specific firewall software and name the DMZ wherever you’re prompted to do so. You’ll also need to give the DNS server and default gateway an IP address. How Many Firewalls Do You Need?

Firewall 62

Firewall Internet Internet DNS 62

Security Affairs

AUGUST 29, 2023

The attackers obtained encrypted passwords from NetScaler ADC configuration files, and the decryption key was stored on the ADC appliance. The attackers attempted to verify outbound network connectivity with a ping command and executed host commands for a subnet-wide DNS lookup. 49) responding to the same C2 software.

VPN 105

VPN Ransomware DNS Malware 105

Krebs on Security

FEBRUARY 24, 2023

The Mylobot malware includes more than 1,000 hard-coded and encrypted domain names, any one of which can be registered and used as control networks for the infected hosts. 5, 2014 , but historic DNS records show BHproxies[.]com The account didn’t resume posting on the forum until April 2014. com on Mar. com first came online Feb.

Accountability 236

Accountability Advertising Marketing Malware 236

Security Affairs

DECEMBER 12, 2019

The operators leverage on low cost and easy to replace infrastructure using dynamic-DNS domains and regularly reused hop points. “MSTIC analysis indicates the use of dynamic DNS providers as opposed to registered domains is in line with GALLIUM’s trend towards low cost and low effort operations.”

Telecommunications 68

Telecommunications DNS Malware Advertising 68

Duo's Security Blog

JULY 8, 2021

The insidious nature of malicious software has not been lost on any of us. Next, it would encrypt files on the victim’s system and deny access until they sent a $189 payment to a post office box in Panama. For example, a hospital in Düsseldorf, Germany became infected with ransomware that managed to encrypt its systems.

Ransomware 84

Ransomware DNS Encryption Healthcare 84

Troy Hunt

SEPTEMBER 17, 2020

I want a "secure by default" internet with all the things encrypted all the time such that people can move freely between networks without ever needing to care about who manages them or what they're doing with them. Now let's try the mobile app: What's the encryption story there?

VPN 358

VPN Phishing DNS Encryption 358

eSecurity Planet

JANUARY 8, 2021

Missing data encryption. When your data is not properly encrypted before storage or transmission, your vulnerability to a cyber threat increases. Solution : While many software solutions exist to assist you with data encryption, you’ll need to find an encryption solution that meets your needs. Buffer overflow.

DDOS 76

DDOS Encryption Authentication Firewall 76

SecureList

SEPTEMBER 21, 2023

Brute-force attacks on services that use SSH, a more advanced protocol that encrypts traffic, can yield similar outcomes. In the screenshot below, the vendor is offering a homebrew DDoS bot complete with a C2 server and software for uploading the malware via Telnet or SSH: See translation Selling Linux IoT bot. Tested, tried.

IoT 100

IoT DDOS Passwords Malware 100

Security Boulevard

JUNE 28, 2023

The safety of any data a company shares with other parties, like software vendors and subcontractors, is also at stake. Now, ransomware attacks often include data exfiltration, which victimizes targeted organizations twice: Hackers might demand money to de-encrypt a company’s data and threaten to sell that data on the dark web.

Cybersecurity 57

Cybersecurity DNS Ransomware Malware 57