SecureList

DECEMBER 18, 2020

On December 13, 2020 FireEye published important details of a newly discovered supply chain attack. In the initial phases, the Sunburst malware talks to the C&C server by sending encoded DNS requests. Our colleagues from FireEye published several DNS requests that supposedly led to CNAME responses on Github: [link].

DNS 75

DNS Telecommunications Malware Encryption 75

Security Boulevard

AUGUST 6, 2024

Threat Intelligence Report Date: August 6, 2024 Prepared by: David Brunsdon, Threat Intelligence - Security Engineer, HYAS Dynamic DNS (DDNS) is a service that automatically updates the Domain Name System (DNS) in real-time to reflect changes in the IP addresses of a domain.

DNS 69

DNS Malware Social Engineering Engineering 69

Security Affairs

DECEMBER 5, 2020

The backdoor uses multiple tricks to evade detection and leverages DNS over HTTPS (DoH) to communicate with its C2 server, using Cloudflare responders. On top of the DNS C2 communication logic, PowerPepper also signals successful implant startup and execution flow errors to a Python backend, through HTTPS.

DNS 131

DNS Phishing Antivirus Encryption 131

Security Affairs

JUNE 20, 2024

The threat actors used tools associated with Chinese espionage groups, they planted multiple backdoors on the networks of targeted companies to steal credentials. “The attacks have been underway since at least 2021, with evidence to suggest that some of this activity may even date as far back as 2020. ” concludes the report.”

DNS 141

DNS Malware Media Encryption 141

Malwarebytes

MAY 12, 2021

Receivers are not required to check whether every fragment that belongs to the same frame is encrypted with the same key and will reassemble fragments that were decrypted using different keys. The design flaws were assigned the following CVEs: CVE-2020-24588 : Aggregation attack (accepting non-SPP A-MSDU frames). Vulnerable devices.

Encryption 128

Encryption Firewall Authentication DNS 128

Krebs on Security

APRIL 4, 2024

Launched in 2008, privnote.com employs technology that encrypts each message so that even Privnote itself cannot read its contents. There is no indication these are the real names of the phishers, but the names are useful in pointing to other sites targeting Privnote since 2020. The real Privnote, at privnote.com. net , privatenote[.]io

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Phishing Cryptocurrency DDOS Internet 255

Troy Hunt

NOVEMBER 25, 2020

link] — Troy Hunt (@troyhunt) November 23, 2020 What appears to have happened is that in order to address "security vulnerabilities on the plug", TP-Link issued a firmware update that killed the HA integration. Looks like @tplinkuk broke it with a firmware update which will now break a bunch of stuff around the house.

IoT 356

IoT Firmware Risk Manufacturing 356

SecureList

SEPTEMBER 29, 2021

In December 2020, news of the SolarWinds incident took the world by storm. The first malicious update was pushed to SolarWinds users in March 2020, and it contained a malware named Sunburst. DNS hijacking. December 22-23, 2020 and. December 28, 2020 to January 13, 2021. December 29, 2020 to January 14, 2021.

DNS 137

DNS Malware Engineering Encryption 137

SecureList

MARCH 10, 2021

After the user starts the program, it changes the DNS settings on the device so that all domains are resolved through the attackers’ servers, which, in turn, prevent users from accessing certain antivirus sites, such as Malwarebytes.com. Updater.exe code snippet containing the encrypted address. Patched.netyyk. DNSChanger.aaox.

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DNS Antivirus Malware Encryption 145

Hacker Combat

JULY 5, 2021

Further, it also matches the two variants in how the malware executes file encryption and secures command-line disputes. ” Still, unlike FiveHands and HelloKitty, the new ransomware variant relies on a Go-based packer that encrypts its C++ malicious software payload. This malicious software also utilizes Golang to steal data.

Ransomware 133

Ransomware DNS Software Encryption 133

Security Affairs

FEBRUARY 5, 2021

The TeamTNT botnet is a crypto-mining malware operation that has been active since April 2020 and that targets Docker installs. The malicious code also leverages other techniques to avoid detection, for example it modifies the system DNS resolvers and uses Google’s public DNS servers to bypass DNS monitoring tools.

Malware 128

Malware DNS Cryptocurrency Internet 128

Security Affairs

AUGUST 10, 2020

In March 2020, The Ministry of Telecommunications (MoTC) issued a directive to all operators in Myanmar with a secret list of 230 sites to be blocked due to the nature of the content; adult content and fake news. In April 2020, Telenor complied with the directive and blocked ALL sites on the block list. Original post at: [link].

Internet 119

Internet Internet Telecommunications DNS 119

Security Affairs

NOVEMBER 19, 2020

Impacted systems included WordPress and DotNetNuke managed hosting platforms, online databases, email servers, DNS servers, RDP access points, and FTP servers. “November 17, 2020 – On Nov.16, “November 17, 2020 – On Nov.16, 16, the Managed.com environment was attacked by a coordinated ransomware campaign.

Ransomware 144

Ransomware DNS Encryption Hacking 144

Malwarebytes

MAY 9, 2023

We have identified attacks from the group starting in 2020, meaning that they have remained under the radar for at least three years. Malwarebytes has identified multiple operations, first dated in 2020. Notes about activity before the war OP#1 - Late 2020 The first operation we know of happened in December 2020.

Surveillance 94

Surveillance Accountability DNS Encryption 94

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. In 2020 the U.S. Types of DDoS Attacks.

DDOS 140

DDOS DNS Firewall Internet 140

Krebs on Security

JULY 3, 2023

However, searching passive DNS records at DomainTools.com for thedomainsvault[.]com In January 2019, Houzz acknowledged that a data breach exposed account information on an undisclosed number of customers, including user IDs, one-way encrypted passwords, IP addresses, city and ZIP codes, as well as Facebook information.

Scams 276

Scams Business Services Accountability Marketing 276

eSecurity Planet

SEPTEMBER 2, 2021

These malicious encryption attacks that take your data hostage are the most financially harmful attacks for companies. One such scenario involving a user with high privileges happened to a major electronics manufacturer for defense and communications markets in 2020. It’s not uncommon for most data to remain encrypted or corrupted.

Ransomware 122

Ransomware DNS Small Business Authentication 122

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. Before that, the resume says he was operations manager of TikTok’s Middle East and North Africa region for approximately seven months ending in April 2020.

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Accountability Advertising Marketing Malware 269

Security Affairs

AUGUST 18, 2021

The Diavol ransomware was compiled with Microsoft Visual C/C++ Compiler, it uses user-mode Asynchronous Procedure Calls (APCs) without symmetric encryption algorithm for encryption, which has worse performance compared to symmetric algorithms. Anchor DNS ), except for the username field. reads the analysis published by Fortinet.

Ransomware 108

Ransomware DNS Cybercrime Malware 108

Security Affairs

AUGUST 10, 2020

The academic researcher James Pavur, speaking at Black Hat 2020 hacking conference , explained that satellite internet communications are susceptible to eavesdropping and signal interception. Pavel explained that attackers could also collect information even when the traffic is encrypted.

Internet 139

Internet Internet Advertising Encryption 139

Security Affairs

OCTOBER 20, 2021

“However, instead of sending it in cleartext, the client deploys a symmetric AES encryption for any communication over the WebSocket for the first exchange, as no shared secret is established yet, and the AES encryption will generate a default key for this first exchange. ” continues the analysis.

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Encryption DNS Architecture Firewall 121

Security Affairs

MAY 15, 2023

“Symantec researchers observed it being used in some activity in 2020 and 2021, as well as this more recent campaign, which continued into the first quarter of 2023. The attack chain employed in 2020 started with a phishing email with a lure based on the 37th ASEAN Summit. ” reads the analysis published by Symantec.

Encryption 98

Encryption DNS Phishing Malware 98

Daniel Miessler

SEPTEMBER 27, 2020

VPNs encrypt the traffic between you and some endpoint on the internet, which is where your VPN is based. If your VPN includes all DNS requests and traffic then you could be hiding significantly from your ISP. How bad is it to be a public figure (blog/YouTube) in 2020? This is true. The Government. So, probably not a win.

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VPN Risk Hacking Encryption 326

Malwarebytes

SEPTEMBER 14, 2022

In fact, there were 50% more attack attempts per week on corporate networks globally in 2021 than in 2020. DNS filtering. The next technology you need to prevent cyberattacks is a DNS filter. But first, a little bit about what DNS (domain name system) is. The DNS server, in turn, tells the computer where to go.

Technology 88

Technology DNS Cyber Insurance Insurance 88

Security Affairs

JULY 27, 2020

According to our estimate, CoAP can reach up to 32 times (32x) amplification factor, which is roughly between the amplification power of DNS and SSDP.”. In February, Radware researchers reported that attackers were abusing the CVE-2020-2100 flaw in 12,000+ internet-facing Jenkins servers to mount reflective DDoS attacks.

DDOS 142

DDOS IoT Internet Internet 142

SecureList

SEPTEMBER 2, 2021

The infection chain of recent QakBot releases (2020-2021 variants) is as follows: The user receives a phishing email with a ZIP attachment containing an Office document with embedded macros, the document itself or a link to download malicious document. The loaded payload (stager) includes another binary containing encrypted resource modules.

Passwords 144

Passwords Encryption Banking Malware 144

eSecurity Planet

DECEMBER 23, 2020

The COVID-19 pandemic of 2020 has forced enterprises of all sizes and industries to adopt new work approaches that keep employees safe at home while ensuring productivity and security. VPNs are intrinsically designed to be encrypted tunnels that protect traffic, making them a secure choice for enabling remote work.

VPN 103

VPN DNS Authentication Mobile 103

SecureList

NOVEMBER 6, 2024

Its parameters are also encrypted — they are decrypted once dropped by the first stage. The target DLL is loaded via a malicious shellcode and encrypted with AES-128 in the same way as described earlier in the initial stage. SteelFox resolves this via Google Public DNS and DNS over HTTPS (DoH). sys driver running inside.

Software 125

Software Cryptocurrency Malware DNS 125

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

SecureList

JUNE 2, 2022

In 2020, we discovered a whole new distribution method for the WinDealer malware that leverages the automatic update mechanism of select legitimate applications. Layout of the encrypted data. Packets exchanged with the C2 server contain a header (described in the next table) followed by AES-encrypted data. 111.120.0.0/14

Malware 143

Malware Encryption Social Engineering Telecommunications 143

SecureList

MAY 31, 2021

While investigating attacks on the defense industry in mid-2020, we were able to observe the complete life-cycle of an attack, uncovering more technical details and links to the group’s other campaigns. Ransomware encrypting virtual hard disks. Ecipekac: sophisticated multi-layered loader discovered in A41APT campaign.

Malware 136

Malware Adware Encryption Architecture 136

McAfee

SEPTEMBER 14, 2021

Inspecting the File (COFF) header, we observed the file’s compilation timestamp: TimeDateStamp: 05/12/2020 08:23:47 – Date and time the image was created. The PlugX families we observed used DNS [ T1071.001 ] [ T1071.004 ] as the transport channel for C2 traffic, in particular TXT queries. exe E370AA8DA0 Jumper64.dat.

Malware 144

Malware DNS Accountability Manufacturing 144

Fox IT

JUNE 29, 2022

Flubot banking malware families are in the wild since at least the period between late 2020 and the first quarter of 2022. Based on reports from other researchers, Flubot samples were first found in the wild between November and December of 2020. in December 2020. In this new version, they introduced DNS-over-HTTPs (DoH).

Banking 97

Banking Malware DNS Encryption 97

eSecurity Planet

MAY 28, 2021

Ransomware: Encryption, Exfiltration, and Extortion. Ransomware perpetrators of the past presented a problem of availability through encryption. Detect Focus on encryption Assume exfiltration. Also Read: How to Prevent DNS Attacks. Also Read: Types of Malware | Best Malware Protection Practices for 2021. Old way New way.

Software 108

Software DNS Firmware VPN 108

Security Affairs

JULY 11, 2022

This campaign is highlighted by Segurança Informática in 2020 , and the high-level diagram of this new campaign can be observed below. Figure 1: High-level diagram of the ANUBIS phishing network and its components (2020). As observed, criminals are using the Let’s Encrypt CA to create valid HTTPs certificates.

Phishing 105

Phishing Social Engineering Banking Engineering 105

eSecurity Planet

MARCH 25, 2022

Like in the case of SolarWinds in 2020, masked threat actors aren’t afraid to linger for months during reconnaissance. By exploiting weak server vulnerabilities, the Iran-based hackers were able to gain access, move laterally, encrypt IT systems, and demand ransom payment. Extended Stays and Attack Execution.

VPN 118

VPN Software Authentication Encryption 118

SecureList

SEPTEMBER 21, 2023

Brute-force attacks on services that use SSH, a more advanced protocol that encrypts traffic, can yield similar outcomes. Botnet based on Medusa, working since 2020. User files were encrypted, with the device’s interface displaying a ransom note demanding payment of 0.03 Our advantages: 1. BTC to recover the data.

IoT 128

IoT DDOS Passwords Malware 128