NetSpi Technical

OCTOBER 19, 2023

Let’s try DNS. To quickly test if we have DNS outbound, we can use Burp Suite Collaborator. This will give us a unique address that we can query and let us know if a DNS request was received. import socket data = socket.gethostbyname_ex(‘<collaborator URL>’) print(repr(data)) We have DNS outbound.

DNS 97

DNS Internet Internet Phishing 97

Security Affairs

NOVEMBER 5, 2021

It also deletes volume shadow service (VSS) snapshots from the server using vssadmin utility to make sure the encrypted files cannot be restored from their VSS copies. The ransomware module encrypts the files in the victim’s server and appends a file extension.babyk to the encrypted files.” Pierluigi Paganini.

Ransomware 133

Ransomware Backups Encryption DNS 133

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 64

DNS Penetration Testing Passwords Encryption 64

eSecurity Planet

AUGUST 8, 2022

A public key is stored with the Domain Name System (DNS) for download by any email server receiving emails with the encrypted digital signature. SPF email authentication counters spoofing by publishing to DNS records a list of email-sending Internet Protocol (IP) addresses authorized by the sending domain. What is SPF?

DNS 116

DNS Phishing Authentication Marketing 116

Security Affairs

JUNE 9, 2022

SentinelOne documented a series of attacks aimed at government, education, and telecom entities in Southeast Asia and Australia carried out by a previously undocumented Chinese-speaking APT tracked as Aoqin Dragon. Luring users into double-clicking a fake Anti-Virus to execute malware in the victim’s host.

Malware 92

Malware DNS Encryption Education 92

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. The document contains valuable technical information regarding Conti’s modus operandi.

Healthcare 111

Healthcare Ransomware System Administration DNS 111

CyberSecurity Insiders

JANUARY 6, 2022

Secure Sockets Layer (SSL) is a standard security protocol that encrypts the connection between a web browser and a server. This only takes a few clicks, because an SSL certificate is a text file with encrypted data. HTTPS and DNS), data link (e.g., Use data encryption. Given that the average cost of a data breach is $3.86

Encryption 134

Encryption Identity Theft Authentication Data breaches 134

Krebs on Security

NOVEMBER 11, 2019

Reached for comment about the source of the document, Orvis spokesperson Tucker Kimball said it was only available for a day before the company had it removed from Pastebin. DNS controls. Encryption certificates. “We are leveraging our existing security tools to conduct an investigation to determine how this occurred.”

Retail 177

Retail Passwords Wireless Backups 177

eSecurity Planet

APRIL 30, 2024

Domain Name System (DNS) servers: Translate domain names to IP addresses. You’ll also need to give the DNS server and default gateway an IP address. The DNS server forwards traffic to the correct location by translating it into the appropriate IP address. Email servers: Facilitate email transmission and reception.

Firewall 62

Firewall Internet Internet DNS 62

Malwarebytes

OCTOBER 16, 2022

As per Bleeping Computer , this leakage can include DNS lookups, HTTPs traffic, IP addresses and (perhaps) NTP traffic (Network Time Protocol, a protocol for synchronising net-connected clocks). Worse, it leaks DNS requests. All of the traffic that appeared in the video is either encrypted or double encrypted.

VPN 75

VPN DNS Encryption Engineering 75

SecureWorld News

MAY 26, 2021

Here is the specific information the FBI is asking for: "The FBI is seeking any information that can be shared, to include boundary logs showing communication to and from foreign IP addresses, Bitcoin wallet information, the decryptor file, and/or a benign sample of an encrypted file. The FBI does not encourage paying ransoms.

Ransomware 66

Ransomware DNS Encryption Healthcare 66

Troy Hunt

JULY 12, 2018

The rapid adoption has been driven by a combination of ever more visible browser warnings (it was Chrome and Firefox's changes which prompted the aforementioned tipping point post), more easily accessible certificates via both Let's Encrypt and Cloudflare and a growing awareness of the risks that unencrypted traffic presents. DNS Hijacking.

DNS 276

DNS Wireless Risk Banking 276

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. Ultimately, regardless of how standards and technology continue to evolve and adapt, the shortest way to break encryption is to obtain the key.

Encryption 94

Encryption Technology Risk Architecture 94

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

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 85

DNS Advertising Spyware Software 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. Record the microphone input.

Malware 107

Malware DNS Encryption Cryptocurrency 107

Pen Test Partners

SEPTEMBER 13, 2023

Justification must be documented within the newly added Appendix E (Customized Approach Template). Section 3 Sensitive authentication data must now be encrypted or protected if stored before authorization. Disk level encryption is no longer permitted for protection unless it is a form of removeable media (e.g.,

Authentication 52

Authentication Passwords Media Encryption 52

Security Affairs

OCTOBER 20, 2021

Researchers from TrendMicro have documented a recent evolution of the PurpleFox botnet, the experts discovered a new.NET backdoor, dubbed FoxSocket, that is highly associated with the PurpleFox operation. Researchers warn of a new evolution of the PurpleFox botnet, operators included exploits and leverage WebSockets for C2 communication.

Encryption 96

Encryption DNS Architecture Firewall 96

Security Boulevard

MAY 17, 2023

Most of these steps could’ve been blocked with the aid of DNS protection. This document revealed Microsoft System Center as Target’s endpoint and point of sale (POS) management tool. It’s in this documentation that they found the details regarding the HVAC companies used by Target.

Data breaches 52

Data breaches DNS Malware Phishing 52

Security Affairs

DECEMBER 7, 2019

State-sponsored hackers launched spear-phishing attackes using weaponized documents. The bait documents reveal malicious activity from at least September 2019, to November 25, 2019. Gamaredon is using weaponized documents, sometimes retrieved from legitimate sources as the initial infection vector.”

Government 60

Government Advertising Media DNS 60

SecureList

JANUARY 13, 2022

A document sent from one colleague to another on a topic, which is currently being discussed, is unlikely to trigger any suspicion. Ultimately, it elevates the level of trust sufficiently for the document to be opened. server-side document viewer like GoogleDocs, Collabora Online, ONLYOFFICE, Microsoft Office Online, etc.).

Cryptocurrency 126

Cryptocurrency Malware Accountability Banking 126

Security Boulevard

MARCH 3, 2023

Alongside Google’s crackdown attempts, the cybersecurity community has undertaken the task of identifying these malicious sponsored links, documenting them, and reporting them to Google in the hopes that it removes them. It generates encrypted traffic to multiple domains hosted on different IP addresses through different hosting companies.

Phishing 59

Phishing DNS Malware Antivirus 59

Duo's Security Blog

JULY 8, 2021

Though in recent weeks ransomware has firmly been in the forefront of people’s minds, the first documented instance of what we now know as ransomware dates back to Dr. Joseph Popp in 1989. 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.

Ransomware 94

Ransomware DNS Encryption Healthcare 94

SecureList

SEPTEMBER 21, 2023

Brute-force attacks on services that use SSH, a more advanced protocol that encrypts traffic, can yield similar outcomes. User files were encrypted, with the device’s interface displaying a ransom note demanding payment of 0.03 DNS changer Malicious actors may use IoT devices to target users who connect to them.

IoT 86

IoT DDOS Passwords Malware 86

SecureList

AUGUST 30, 2023

Since 2018, Lazarus has persistently targeted crypto-currency-related businesses for a long time, using malicious Word documents and themes related to the crypto-currency business to lure potential targets. The threat actor not only develops its own tools, but also uses open source or commercially available implants and offensive tools.

Malware 73

Malware Spyware Cryptocurrency Government 73

CyberSecurity Insiders

APRIL 6, 2023

GoDaddy, Network Solutions) DNS service (E.g., If privilege escalation is possible from within an already-authenticated account, the mechanism by which that occurs must be thoroughly documented and monitored (logged) too. Akamai, CloudFront) Certificate providers (E.g., PCI DSS v4.0

Accountability 57

Accountability DNS DDOS VPN 57

SecureList

APRIL 22, 2024

A connection like this created on domain controllers allows attackers to obtain the IP addresses of hosts on the internal network through DNS queries. 54112" Krong is a proxy that encrypts the data transmitted through it using the XOR function. It protects data with the current user’s password and a special encryption master key.

VPN 105

VPN Passwords Encryption Malware 105

Kali Linux

FEBRUARY 13, 2022

Besides that, we have been working on a new feature, which just isn’t quite ready yet (as the documentation is still in progress!). Utilizing the refreshed documentation sites ( Kali-Docs and Kali-Tools ) , the search function will help you find almost anything you could need using Kali Linux!

DNS 52

DNS Architecture Media Encryption 52

Troy Hunt

NOVEMBER 25, 2020

Let's start by looking at this from a philosophical standpoint: But here’s the bigger philosophical question: the device still worked fine with the native app, should @TPLINKUK be held accountable for supporting non-documented use cases? Probably “no”, but in a perfect world they’d document local connections by other apps and not break that.

IoT 358

IoT Firmware Risk Manufacturing 358

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 Boulevard

FEBRUARY 26, 2021

Destructive attacks and the sale of direct access into corporate networks are also rising trends and the lucrative payoff potential from all these is changing how adversaries approach their craft; a typical ransomware attack today is designed to do a lot more than simply encrypt data.

Ransomware 59

Ransomware Encryption Phishing DNS 59

Fox IT

JANUARY 12, 2021

In one specific case, the adversary now armed with the valid account, was able to access a document stored in SharePoint Online, part of Microsoft Office 365. This specific document described how to access the internet facing company portal and the web-based VPN client into the company network. m5 = use compression level 5.

VPN 68

VPN Accountability Passwords DNS 68

eSecurity Planet

SEPTEMBER 3, 2022

For example, the 2016 DDoS attack on the Dyn managed domain name service (DNS) caused the DNS service to fail to respond to legitimate DNS inquiries and effectively shut down major sites such as PayPal, Spotify, Twitter, Yelp, and many others. Also read: How to Secure DNS. Types of DDoS Attacks. Harden infrastructure.

DDOS 141

DDOS DNS Firewall Internet 141

SecureList

NOVEMBER 26, 2021

The link leads to a RAR archive that masquerades as a Word document. To exploit the vulnerability, attackers embed a special object in a Microsoft Office document containing a URL for a malicious script. If the victim opens the document, Microsoft Office downloads the script and runs it using the MSHTML engine. an invoice).

Malware 86

Malware Banking Energy and Utilities Accountability 86

The Last Watchdog

OCTOBER 19, 2021

For example, we are currently using Wildland to help us organize the knowledge we’ve gained during the developmental process so far, but also as an “after-hours” media swap hangout, where we share interesting documents with each other (a short blog post explaining both of these use-cases is available at [link] ).

Internet 223

Internet Internet Cryptocurrency Software 223

SC Magazine

MAY 19, 2021

That could be by purging un-needed data, encryption, archiving, anonymizing data, basically doing something different,” Halota said. Does the company have to make DNS, firewall, or routing changes to make sure data can cleanly get from on-prem systems to the CSP? Some CSPs have dedicated links,” Vickers said.

Firewall 57

Firewall Cloud Migration Architecture Information Security 57

Security Affairs

APRIL 1, 2019

The story is well documented going back in the past years when one project of MalwareMustDie team was very active to monitor the China origin ELF DDoS’er malware threat. The code seems inspired from multiple source code of China basis DDoS client, like Elknot. But what kind of malware is this Elknot Trojan?

DDOS 89

DDOS Malware Encryption Penetration Testing 89