SecureList

MAY 31, 2021

On March 2, Microsoft released out-of-band patches for four zero-day vulnerabilities in Exchange Server that are being actively exploited in the wild (CVE-2021-26855, CVE-2021-26857, CVE-2021-26858 and CVE-2021-27065). It then downloads and installs the miner.

Malware 101

Malware Adware Encryption Architecture 101

SecureList

MARCH 10, 2021

Back then, cybercriminals distributed malware under the guise of the Malwarebytes antivirus installer. After substituting the DNS servers, the malware starts updating itself by running update.exe with the argument self-upgrade (“C:Program Files (x86)AdShieldupdater.exe” -self-upgrade). Distributed under the name adshield[.]pro,

DNS 144

DNS Antivirus Malware Encryption 144

SecureList

APRIL 27, 2021

This is our latest installment, focusing on activities that we observed during Q1 2021. In parallel, Volexity also reported the same Exchange zero-days being in use in early 2021. Use of CVE-2021-1732 peaked between June and July 2020, but the overall campaign is still ongoing. The most remarkable findings.

Malware 142

Malware Spyware Government Social Engineering 142

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 122

Phishing Malware Engineering Ransomware 122

Vipre

JANUARY 25, 2021

Here are 5 common security tools that you must have in 2021 to protect your digital world. Thus, an antivirus is the most important security tool that everyone must have to protect themselves from viruses, malware, trojans, and similar cyber threats. DNS ad blockers are a new breed of ad blockers that use DNS to effectively block ads.

Identity Theft 40

Identity Theft Backups VPN Antivirus 40

Krebs on Security

JULY 18, 2022

These two software are currently unknown to most if not all antivirus companies.” “Using the internal router, it would be possible to poison the DNS cache of the LAN router of the infected node, enabling further attacks.” The Exe Clean service made malware look like goodware to antivirus products.

VPN 313

VPN Computers and Electronics Antivirus Software 313

Security Affairs

FEBRUARY 4, 2021

On January 25, 2021, researchers at 360 netlab detected a suspicious ELF file, initially attributed to Mirai , but that later revealed his nature, a new bot tracked as Matryosh. “On January 25, 2021, 360 netlab BotMon system labeled a suspicious ELF file as Mirai, but the network traffic did not match Mirai’s characteristics.

DDOS 126

DDOS DNS Antivirus Malware 126

Security Affairs

JUNE 9, 2022

The malware was first spotted in November 2021, experts believe it was designed to target the financial sector in Latin America, such as Banco do Brasil and Caixa. Once the malware has infected all the running processes, it provides the threat actor with rootkit capability and supports data-stealing capabilities. ” concludes the report.

Malware 142

Malware DNS Antivirus Passwords 142

Security Affairs

DECEMBER 16, 2021

Microsoft researchers reported that Nation-state actors from China, Iran, North Korea, and Turkey are now abusing the Log4Shell (CVE-2021-44228) in the Log4J library in their campaigns. In these attacks, HAFNIUM-associated systems were observed using a DNS service typically associated with testing activity to fingerprint systems.”

Ransomware 79

Ransomware DNS Antivirus Hacking 79

Security Affairs

JULY 28, 2022

Researchers from threat intelligence firm RiskIQ, using passive DNS data related to Knotweed attacks, linked the C2 infrastructure used by the malware since February 2020 to DSIRF. Confirm that Microsoft Defender Antivirus is updated to security intelligence update 1.371.503.0 ” reads the report. £We

Surveillance 85

Surveillance Malware Authentication DNS 85

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. The post Point-of-Sale (POS) Security Measures for 2021 appeared first on eSecurityPlanet. Errors to avoid.

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. Also read: Top Endpoint Detection and Response (EDR) Solutions for 2021. — Eva (@evacide) October 4, 2021. Eugene Kaspersky | @e_kaspersky.

Accountability 139

Accountability Cybersecurity Penetration Testing InfoSec 139

eSecurity Planet

SEPTEMBER 7, 2021

In July 2021, another wave of attacks hit SolarWinds. Monitoring infrastructure like Domain Name Servers (DNS) and web servers for malicious activity. Endpoint protection software such as EDR tools go way beyond traditional antivirus software to offer advanced features like incident response and vulnerability management.

Antivirus 137

Antivirus Software Risk Malware 137

eSecurity Planet

MARCH 21, 2022

By using a misconfigured Cisco Duo MFA implementation to force enrollment of a new device, the hackers were then able to use the “PrintNightmare” Windows Print Spooler vulnerability ( CVE-2021-34527 and CVE-2021-36958 ) to obtain administrator privileges. Inactive Accounts and Default Configurations.

VPN 114

VPN Accountability Authentication Passwords 114

Cisco Security

DECEMBER 8, 2022

In their 2021 Internet Crime Report , the Internet Crime Complaint Center (IC3) said that Non-Payment / Non-Delivery scams such as these led to more than $337 million in losses, up from $265 million in 2020. What they may not be aware of, is that they have just given their credit card details away in a phishing scam.

Scams 141

Scams Phishing Malware Internet 141

eSecurity Planet

SEPTEMBER 29, 2021

Recent research by Positive Technologies looked at the cyber threat landscape during Q2 2021 and found that ransomware attacks reached “stratospheric” levels, accounting for 69% of all malware attacks, a huge jump from 39% in Q2 2020. DNS filtering. Integrated one-on-one Spyware HelpDesk support.

Ransomware 107

Ransomware VPN Backups Malware 107

CyberSecurity Insiders

SEPTEMBER 21, 2021

Alien Labs research indicates the command and control (C&C) server used in this newly discovered campaign contains infection statistics that suggest TeamTNT has been running this campaign since July 25, 2021, and that it is responsible for thousands of infections globally. Exfil Domain in DNS Query. Background. Appendix B.

Cryptocurrency 84

Cryptocurrency Malware Passwords Authentication 84

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 96

Malware DNS Government Software 96

Security Boulevard

JUNE 15, 2023

As a result, this technique may bypass static antivirus signatures and complicate malware reverse engineering. Prior to this date, in 2021, the domain was registered and hosted by a previous owner, with DNS resolution observed through October of 2021. The builder enables operators to specify up to four C2 endpoints.

Cryptocurrency 52

Cryptocurrency Password Management Malware DNS 52

SecureList

JUNE 2, 2022

A downloader utility and WinDealer of 2021 use the unique user-agent “BBB” The downloader periodically retrieves and runs an executable from hxxp://www.baidu[.]com/status/windowsupdatedmq.exe. Full control over the DNS, meaning they can provide responses for non-existent domains. com/status/windowsupdatedmq.exe.

Malware 118

Malware Encryption Social Engineering Telecommunications 118

SecureList

DECEMBER 1, 2023

Upon startup, this backdoor makes a type A DNS request for the <hex-encoded 20-byte string> u.fdmpkg[.]org After parsing the response to the DNS request, the backdoor launches a reverse shell, using the secondary C2 server for communications. org domain. Opening one of these files displays an image similar to the one below.

Malware 98

Malware Ransomware Encryption Energy and Utilities 98

ForAllSecure

NOVEMBER 2, 2021

Speaking at this year’s SecTor 2021 , he shares some of his findings on Kabolos , a stealthy malware that uses SSH credentials to hide, that is perhaps exposed much easier through scanning the IPv4 space -- all 3.7 He works for an antivirus company and he's been scanning for malware families on the internet. Marc-Etienne M.Léveillé

Internet 52

Internet Internet Malware Authentication 52