eSecurity Planet

OCTOBER 3, 2022

The cybercriminals were able to take screenshots, perform discovery commands, and establish persistent connections to their command and control (C&C) servers while evading detection tools. They used LinkedIn to connect with the victims and gain their trust. Putty) and networking tools. UK, and India. UK, and India.

Software 118

Software Social Engineering Engineering Phishing 118

Malwarebytes

DECEMBER 1, 2023

A CDN is basically a large network of proxy servers and data centers and it can be used to host multiple domains. It’s what companies like Netflix use to deliver the requested content from a server near you. But as is true or many good things, it also comes with a flipside. They are also known as content distribution networks.

DNS 82

DNS Internet Internet Encryption 82

Security Affairs

MARCH 11, 2019

According to the expert, the flaw could be exploited by a remote attacker to trick developers into executing arbitrary commands on targeted services. StackStorm has been used to automate workflows in many industries, it allows developers to configure actions, workflows, and scheduled tasks, to perform some operations on large-scale servers.

Software 106

Software Advertising Authentication Hacking 106

Krebs on Security

SEPTEMBER 30, 2023

“Snatch threat actors have been observed purchasing previously stolen data from other ransomware variants in an attempt to further exploit victims into paying a ransom to avoid having their data released on Snatch’s extortion blog,” the FBI/CISA alert reads. . “Experience in backup, increase privileges, mikicatz, network.

Ransomware 218

Ransomware Accountability Cybercrime Backups 218

Security Affairs

AUGUST 28, 2019

The French police force, National Gendarmerie, announced to have neutralized the Retadup malware on over 850,000 computers taking over its C2 server. The French police force, National Gendarmerie, announced the successful takedown of a huge RETADUP botnet after it has taken the control of its command and control (C2) server.

Malware 85

Malware Advertising Antivirus Cryptocurrency 85

Security Boulevard

OCTOBER 21, 2022

Command Execution Module. pk” which may indicate a compromise of their web server. It is possible that this ISO file was uploaded to the server due to web server compromise. It does so with the help of the command shown in the following screenshot. Key Features of this Attack. File Manager InfoExfil Module.

DNS 52

DNS Phishing Malware Government 52

SecureList

FEBRUARY 25, 2021

We observed how they overcame network segmentation by gaining access to an internal router machine and configuring it as a proxy server, allowing them to exfiltrate stolen data from the intranet network to their remote server. During this investigation we had a chance to look into the command-and-control infrastructure.

Malware 133

Malware Phishing Passwords Encryption 133

Krebs on Security

MARCH 1, 2022

Conti makes international news headlines each week when it publishes to its dark web blog new information stolen from ransomware victims who refuse to pay an extortion demand. .” The chat logs offer a fascinating glimpse into the challenges of running a sprawling criminal enterprise with more than 100 salaried employees.

Ransomware 271

Ransomware Healthcare Cybercrime Government 271

Security Affairs

MAY 21, 2022

Sandworm (aka BlackEnergy and TeleBots ) has been active since 2000, it operates under the control of Unit 74455 of the Russian GRU’s Main Center for Special Technologies (GTsST). IMPACKET is used for remote execution of commands.”. reads the advisory published by the Ukrainian CERT. “The

Malware 102

Malware Government Cyber Attacks Hacking 102

Malwarebytes

NOVEMBER 15, 2021

An FBI server was used to send out these mails. The server itself was a tiny link in the chain known as LEEP. It includes active shooter initiatives, blogs, forums, and a “Virtual Command Center” Unfortunately, for a short period of time it also included bogus attack mail notifications. How did this happen?

Social Engineering 93

Social Engineering Engineering Technology 93

Pentester Academy

APRIL 27, 2023

It is an arbitrary code execution vulnerability and is quite easy to exploit — if the bash interpreter is passed a variable having a certain pattern (as we will see in the following manual), it ends up executing the supplied commands and leads to the code execution vulnerability — a holy grail for the attackers! Sounds flexible right!

Risk 52

Risk Hacking Technology InfoSec 52

Security Boulevard

JUNE 22, 2023

You need to consider if principals are meant to have the level of control they have and if they are essential for the enterprise identity infrastructure’s operability. You need to consider if principals are meant to have the level of control they have and if they are essential for the enterprise identity infrastructure’s operability.

Backups 59

Backups Accountability Passwords Authentication 59

eSecurity Planet

SEPTEMBER 8, 2021

A critical vulnerability discovered in the open-source load balancer and proxy server HAProxy could enable bad actors to launch an HTTP Request Smuggling attack, which would let them bypass security controls and gain unauthorized access to sensitive data. HAProxy fits into that category. HTTP Request Smuggling. of HAProxy.

Architecture 106

Architecture Firewall Authentication Software 106

LRQA Nettitude Labs

APRIL 19, 2023

By using a gateway and endpoints defined in a LoRa network service, it is possible to create a functional means to issue commands and receive data from a placed drop box. However, it is also possible to host a private LoRaWAN server, which will provide the same service as a cloud service provider but remain anonymous in an IR event.

Penetration Testing 52

Penetration Testing Firmware IoT Authentication 52

Security Boulevard

JANUARY 21, 2022

In October 2020, Formbook was rebranded as Xloader and some significant improvements were introduced, especially related to the command and control (C2) network encryption. When Formbook was sold, a web-based command and control (C2) panel was given to customers, so they could self-manage their own botnets. Figure 2.

Encryption 126

Encryption Malware Backups Passwords 126

Security Affairs

AUGUST 13, 2019

I wrote a blog post on the story of the discovery all the way through to exploitation. Ormandy explained that the msctf subsystem is part of the Text Services Framework (TSF), that manages input methods, keyboard layouts, text processing and other issues. The TSF is composed of the ctfmon server and the MSCTF client.

Advertising 93

Advertising Authentication Passwords Hacking 93

Cisco Security

JUNE 13, 2022

For example: IMPACT : An SSH server which supports password authentication is susceptible to brute-forcing attacks. REPRODUCTION : Use the `ssh` command in verbose mode (`ssh -v`) to determine supported authentication methods. The following sections explain how this can be approached. How was it detected?

DNS 115

DNS Engineering Authentication Malware 115

Security Boulevard

AUGUST 5, 2022

SSH authenticates the parties involved and allows them to exchange commands and output via multiple data manipulation techniques. As Justin Elingwood of DigitalOcean explains , SSH encrypts data exchanged between two parties using a client-server model. The server then recreates the message and verifies the server.

Encryption 59

Encryption Authentication System Administration Firewall 59

Security Boulevard

OCTOBER 24, 2023

How do defenders truly reclaim control over their domain? This post will explore techniques adversaries use to gain and sustain access within a domain, including credential dumping on domain controllers, Active Directory configuration syncing, Kerberos protocol manipulation, and certificate abuse.

Backups 69

Backups Passwords Authentication Accountability 69

Security Affairs

JUNE 14, 2022

The experts pointed out that it also allows authenticated user-mode processes to interact with the rootkit to control it. Once installed, they intercept legitimate Linux commands to filter out information that they do not want to be displayed, such as the presence of files, folders, or processes. ” continues the analysis.

Malware 77

Malware System Administration Antivirus Architecture 77

Security Boulevard

DECEMBER 28, 2022

Here, the Salt Labs team looks to clear up some confusion, explain what Spring4Shell really is, share who might be impacted, and offer tips for mitigating your risk. Simply put, the Spring4Shell vulnerability allows the injection of Java objects into legitimate request handlers, opening the door for server exploitation.

Accountability 52

Accountability Risk Network Security 52

CyberSecurity Insiders

NOVEMBER 11, 2021

Mirai is a botnet that initiates its communication with its command and control (C&C). The malware maps each function with a string that represents a potential targeted system — such as a signature, which we’ll explain later in this blog (see figure 3). Background. It also has different DDoS functionality.

Malware 85

Malware IoT Firmware Authentication 85

Malwarebytes

MAY 31, 2023

In this blog, we'll review Volt Typhoon, dig into how they evade detection, discuss CISA's protective recommendations, and see how Malwarebytes EDR can help eliminate such threats. This command line tool lets them gather details like drive letter, filesystem type, free space, and volume name without needing administrative privileges.

Passwords 70

Passwords Government Firewall Accountability 70

Malwarebytes

JULY 30, 2021

LemonDuck has evolved from a Monero cryptominer into LemonCat, a Trojan that specializes in backdoor installation, credential and data theft, and malware delivery, according to the Microsoft 365 Defender Threat Intelligence Team, which explained their findings in a two-part story [ 1 ][ 2 ] on the Microsoft Security blog.

Malware 87

Malware Penetration Testing Passwords Antivirus 87

Krebs on Security

JANUARY 22, 2019

In July 2018, email users around the world began complaining of receiving spam which began with a password the recipient used at some point in the past and threatened to release embarrassing videos of the recipient unless a bitcoin ransom was paid. That’s according to Ron Guilmette , a dogged anti-spam researcher.

DNS 235

DNS Internet Internet Computers and Electronics 235

Security Boulevard

APRIL 26, 2022

Some details about this campaign were published in this Korean blog, however they did not perform the threat attribution. Our research led us to the discovery of command-and-control (C2) domains even before they were used in active attacks by the threat actor. Attack chains. Spear phishing emails distribution.

Phishing 52

Phishing DNS Cryptocurrency Accountability 52

Malwarebytes

JANUARY 29, 2021

This blog post was authored by Hasherezade and Jérôme Segura. On January 27, Europol announced a global operation to take down the botnet behind what it called the most dangerous malware by gaining control of its infrastructure and taking it down from the inside. In this blog we will review this update and how it is meant to work.

Malware 103

Malware System Administration Banking Accountability 103

Security Affairs

AUGUST 3, 2018

” reads the blog post published by Kaspersky. . ” reads the blog post published by Kaspersky. Malicious files can be run either by an executable file attached to an email or by a specially crafted script for the Windows command interpreter.” states the researchers. states the researchers.

Phishing 44

Phishing VPN Passwords Software 44

Pentester Academy

FEBRUARY 23, 2023

According to Josh Fruhlinger’s article Ransomware Explained , “there are several different ways attackers choose the organizations they target with ransomware. Lab Link: [link] The user is going to get access to a Kali GUI instance and Windows Server 2019. Ransomware damages would cost the world $5 billion (USD) in 2017.

Ransomware 52

Ransomware Encryption Cryptocurrency Banking 52

Security Boulevard

JUNE 14, 2021

This blog post is divided into four parts: Introduction : provides an overview of what happened. This malware is a so called "infostealer" or "information stealer" that is capable of extracting sensitive data from your machine (such as wallet information, credentials, and so on). Analysis : analysis of the attack and the malware used.

Antivirus 142

Antivirus Accountability Malware Passwords 142

The Last Watchdog

MARCH 6, 2020

Cyber threats now command the corporate sector’s full attention. We find many CISOs spend their time explaining what threats matter and why, as opposed to why cybersecurity matters in the first place,” he says. Awareness is a vital step forward, no doubt. But it’s only a baby step. Corporate inertia still looms large.

CISO 185

CISO VPN Digital transformation Internet 185

Lenny Zeltser

JULY 27, 2018

Dated April 18, 2000, Slackbot came with a builder that allowed its user to customize the name of the IRC server and channel that the person wanted to use for Command and Control (C2). In addition to connecting to the user-designated C2 server, the specimen also reached out to a hardcoded server irc.slim.org.au

Malware 75

Malware Engineering Education Software 75

Security Affairs

APRIL 28, 2020

The Outlaw Botnet uses brute force and SSH exploit (exploit Shellshock Flaw and Drupalgeddon2 vulnerability ) to achieve remote access to the target systems, including server and IoT devices. As previously mentioned, the infection chain starts with the hack of a Linux server, after a SSH brute-force attack as shown in Fig.1.

Architecture 101

Architecture Malware Hacking DDOS 101

CyberSecurity Insiders

MAY 12, 2021

In this week’s blog post, we’ll explain more about MITRE ATT&CK and how organizations can use the framework to support their security log analytics initiatives, enhance threat defenses and protect their infrastructure and data from cyber adversaries. What is the MITRE ATT&CK Framework? What is the MITRE ATT&CK Framework?

Threat Detection 90

Threat Detection Penetration Testing Cyber threats Cyber Attacks 90

Security Boulevard

JANUARY 17, 2024

This blog post describes methods that SpecterOps consultants have researched to successfully circumvent this technology during offensive assessments. Authored By: Lance B. This post then concludes with us sharing our perspective regarding the recommendation of RBIs as a defensive product for the modern enterprise. What is RBI and Why Use It?

DNS 64

DNS Penetration Testing Passwords Encryption 64

Security Boulevard

MARCH 30, 2023

which introduced significant improvements to obfuscate the malware code and data including the list of command-and-control (C2) servers. This blog post analyzes the encryption algorithms used by Xloader to decrypt the most critical parts of the code and the most important parameters of the malware’s configuration.

Encryption 59

Encryption Malware 59

Security Affairs

JUNE 14, 2022

allows an unauthenticated attacker to inject arbitrary memcache commands into a targeted instance. These memcache commands becomes unescaped, causing an overwrite of arbitrary cached entries.” Memcached server stores key/value pairs that can be set and retrieved with a simple text-based protocol.

Passwords 78

Passwords Hacking Cybersecurity Information Security 78