Krebs on Security

MARCH 2, 2020

A large number of French critical infrastructure firms were hacked as part of an extended malware campaign that appears to have been orchestrated by at least one attacker based in Morocco, KrebsOnSecurity has learned.

DNS 263

DNS Penetration Testing Malware Hacking 263

Security Affairs

APRIL 16, 2020

Linksys has reset passwords for all its customers’ after learning on ongoing DNS hijacking attacks aimed at delivering malware. Crooks continue to launch Coronavirus-themed attacks , in the last weeks, experts observed hackers hijacking D-Link and Linksys routers to redirect users to COVID19-themed sites spreading malware.

Passwords 111

Passwords DNS Malware Advertising 111

Security Affairs

MARCH 26, 2020

The number of Coronavirus-themed attacks continues to increase, crooks hijack D-Link and Linksys routers to redirect users to sites spreading COVID19-themed malware. Crooks continue to launch Coronavirus-themed attacks , experts observed hackers hijacking D-Link and Linksys routers to redirect users to COVID19-themed sites spreading malware.

Malware 73

Malware DNS Advertising Cryptocurrency 73

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. The account didn’t resume posting on the forum until April 2014. This gave us clear evidence that Mylobot infected computers are used by the BHProxies service.”

Accountability 236

Accountability Advertising Marketing Malware 236

Security Affairs

SEPTEMBER 19, 2020

The popular encrypted email service Tutanota was hit with a series of DDoS attacks this week targeting its website fist and its DNS providers later. Encrypted email service, Tutanota suffered a series of DDoS attacks that initially targeted the website and later its DNS providers. SecurityAffairs – hacking, Tutanota).

DDOS 136

DDOS Encryption DNS Advertising 136

Security Affairs

OCTOBER 1, 2018

Security experts from Qihoo 360 NetLab spotted GhostDNS, a malware that already infected over 100K+ devices and targets 70+ different types of routers. Security experts from Qihoo 360 NetLab have uncovered an ongoing hacking campaign that leverages the GhostDNS malware. ” reads the analysis published by the experts.

DNS 72

DNS Malware Firmware Phishing 72

Security Affairs

JULY 15, 2020

Security researchers discovered another malware family delivered through tax software that some businesses operating in China are required to install. Security researchers at Trustwave have discovered another malware family delivered through tax software that Chinese banks require companies operating in the country to install.

Software 77

Software Malware Banking Advertising 77

Security Affairs

MARCH 22, 2019

The financially-motivated hacking group FIN7 is back and used a new piece of malware in a recent hacking campaign. Security experts at Flashpoint revealed that the financially-motivated cybercrime group FIN7 (aka Anunak and Carbanak ) used new malware in a recent hacking campaign. ” continues the analysis.

Malware 81

Malware Identity Theft Cybercrime Hacking 81

Security Affairs

APRIL 24, 2019

Iran-linked OilRig cyberespionage group is using the reconnaissance malware Karkoff along with DNSpionage in recent campaigns. Iran-linked OilRig cyberespione group is using the reconnaissance malware Karkoff along with DNSpionage in recent campaigns. ” reads the analysis published by Talos. ” continues the experts.

Malware 64

Malware DNS Advertising Hacking 64

Security Affairs

APRIL 22, 2020

” The malware sample employed in the attack resembled a Winnti dropper previously analyzed by ESET researcher that was submitted to a public online malware scanning service. The analysis of the configuration file of malware allowed the identification of the intended target. SecurityAffairs – Winnti, hacking).

DNS 109

DNS Malware Advertising Software 109

Security Affairs

JULY 19, 2020

Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. Copyright (C) 2014 Media.net Advertising FZ-LLC All Rights Reserved -->. Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. Copyright (C) 2014 Media.net Advertising FZ-LLC All Rights Reserved -->. Pierluigi Paganini.

DNS 74

DNS Advertising Surveillance Malware 74

Malwarebytes

MAY 5, 2022

Agent Tesla is a well-known data stealer written in.NET that has been active since 2014 and is perhaps one of the most popular payloads observed in malspam campaigns. Based on these profiles, we can see this threat actor has an extensive criminal record starting at least from 2014. Test successful! ” from the same machine.

Malware 75

Malware Scams Phishing Accountability 75

Security Affairs

OCTOBER 28, 2020

According to a new report published by researchers from security firm Netscout , TrickBot’s operators have started to use a new variant of their malware in an attempt to Linux systems and expand the list of its targets. “Often delivered as part of a zip, this malware is a lightweight Linux backdoor. Pierluigi Paganini.

DNS 101

DNS Banking Advertising IoT 101

Security Affairs

APRIL 8, 2019

Kaspersky Lab reported that hundreds of users have been targeted with malware over the past month as part of a recent Roaming Mantis campaign. Security experts at Kaspersky Lab reported that hundreds of users have been targeted with malware over the past month as part of a new campaign associated with Roaming Mantis gang.

DNS 86

DNS Mobile Phishing Malware 86

Security Affairs

FEBRUARY 1, 2019

Security experts at Cybaze – Yoroi ZLab have analyzed a new sample of the AdvisorsBot malware, a downloader that was first spotted in August 2018. As usual, the malware looks like a legitimate e-mail attachment, named as “invoice.doc”. Figure 3 – Piece of VBS script that starts malware infection. DLL Analysis.

Malware 82

Malware DNS Social Engineering Advertising 82

Security Affairs

DECEMBER 18, 2019

Security experts recently found notable malware activity affecting devices running Linux that is associated with the Momentum Botnet. Malware researchers from Trend Micro recently observed notable malware activity affecting devices running Linux that is associated with the Momentum Botnet. ” concludes the analysis.

Malware 60

Malware DDOS DNS Advertising 60

Security Affairs

JANUARY 24, 2019

A still ongoing spam campaign that has been active during the last months has been distributing the Redaman banking malware. Experts at Palo Alto Networks continue to monitor an ongoing spam campaign that has been distributing the Redaman banking malware. Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->.

Banking 83

Banking Malware Advertising DNS 83

Security Affairs

SEPTEMBER 23, 2020

Qurium analyzes the blocking implemented by four different operators in Belarus Belarus operators use their own infrastructure to implement the blocking Block techniques include transparent web proxies, injection of HTTP responses, stateless and stateful SSL DPI and fake DNS responses. SecurityAffairs – hacking, Internet).

Internet 114

Internet Internet DNS Advertising 114

Security Affairs

MARCH 5, 2020

Security researchers demonstrated that hundreds of sub-domains belonging to Microsoft could potentially be hijacked and abused to deliver malware and for phishing attacks. Let’s consider mybrowser.microsoft.com, it might have resolved by the DNS to something like webserver9000.azurewebsites.net. azurewebsites.net.

DNS 89

DNS Phishing Advertising Malware 89

Security Affairs

DECEMBER 19, 2020

The Joker’s Stash carding platform has been active since October 7, 2014, it focuses on the sale of stolen payment card details. Joker Stash admins said in a message published on a hacking forum that the law enforcement only seized the servers hosting the above domains, that were only used to redirecting visitors to the actual website.

DNS 131

DNS Cybercrime Hacking Information Security 131

Security Affairs

NOVEMBER 4, 2020

Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. Copyright (C) 2014 Media.net Advertising FZ-LLC All Rights Reserved -->. . Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. Copyright (C) 2014 Media.net Advertising FZ-LLC All Rights Reserved -->.

InfoSec 113

InfoSec DNS Advertising Marketing 113

Security Affairs

AUGUST 6, 2021

If you are in doubt, check the subnets on [link] and look at known DNS entries to get an idea. SecurityAffairs – hacking, Conti ransomware). For most organizations, the chance of false positives, when blocking these subnets, will be very low to non-existent. ’ Follow me on Twitter: @securityaffairs and Facebook.

Ransomware 106

Ransomware DNS Malware Hacking 106

Security Affairs

FEBRUARY 19, 2019

Over the last few days, a phishing campaign from DHL and entitled “ DHL Shipment Notification ” has been targeted users worldwide distribution the Muncy malware. Now, the malware is targeting user’s worldwide and has been spread via phishing campaigns. The process flow diagram below shown how the malware works.

Malware 76

Malware Phishing DNS Engineering 76

Security Affairs

JUNE 16, 2020

A remote attacker could exploit the flaw by sending specially crafted IP packets or DNS requests to the vulnerable devices. Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. Copyright (C) 2014 Media.net Advertising FZ-LLC All Rights Reserved -->. SecurityAffairs – Ripple20, hacking).

Hacking 65

Hacking IoT Advertising DNS 65

Security Affairs

JULY 15, 2023

Gamaredon has been active since 2014 and its activity focus on Ukraine, the group was observed using the multistage backdoor Pteranodon / Pterodo. doc,docx,xls,xlsx,rtf,odt,txt,jpg,jpeg,pdf,ps1,rar,zip,7z,mdb) usually takes 30-50 minutes (usually with GAMMASTEEL malware).” ” states the alert published by CART-UA.

Social Engineering 94

Social Engineering DNS Accountability Malware 94

Security Affairs

MARCH 20, 2020

Most of APT28s’ campaigns leveraged spear-phishing and malware-based attacks, the recent mass scanning activity represents a change in the modus operandi of the group. “This report aims to shed light on some of Pawn Storm’s attacks that did not use malware in the initial stages. SecurityAffairs – APT28, hacking).

Phishing 130

Phishing Accountability Advertising DNS 130

Security Affairs

JULY 17, 2019

Threat actors used the Extembro DNS- changer Trojan in an adware campaign to prevent users from accessing security-related websites. Security experts at Malwarebytes observed an adware campaign that involved the Extembro DNS- changer Trojan to prevent users from accessing websites of security vendors. ” concludes the analysis.

Adware 55

Adware DNS Malware Advertising 55

Security Affairs

JANUARY 19, 2019

“This malware is a lure Excel document with name ‘???????.xlsm’. The final stage malware is a backdoor written in C#. According to the analysis made by malware researchers from Palo Alto Networks, the text file includes parts of a Windows Script Component (.SCT) The final stage malware is a backdoor written in C#.

DNS 81

DNS Penetration Testing Malware Advertising 81

Security Affairs

JULY 15, 2020

“Today we released an update for CVE-2020-1350 , a Critical Remote Code Execution (RCE) vulnerability in Windows DNS Server that is classified as a ‘wormable’ vulnerability and has a CVSS base score of 10.0. This issue results from a flaw in Microsoft’s DNS server role implementation and affects all Windows Server versions.

DNS 58

DNS Advertising Engineering Internet 58

Security Affairs

OCTOBER 5, 2020

Unlike other IoT DDoS botnets, Ttint implements 12 remote access functions such as Socket5 proxy for router devices, tampering with router firewall and DNS settings, executing remote custom system commands. ” ~ Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. SecurityAffairs – hacking, Ttint botnet).

IoT 133

IoT Firmware DNS Advertising 133

Security Affairs

DECEMBER 12, 2019

Microsoft experts reported that the GALLIUM hacking group exploits unpatched vulnerabilities to compromise systems running /JBoss application servers. Experts pointed out that GALLIUM threat actors were using common versions of malware and publicly available tools with a few changes to evade detection. ” continues the analysis.

Telecommunications 63

Telecommunications DNS Malware Advertising 63

Security Affairs

SEPTEMBER 17, 2018

Palo Alto Network researchers discovered a new malware, tracked as XBash, that combines features from ransomware, cryptocurrency miners, botnets, and worms. Security researchers at Palo Alto Networks have discovered a new piece of malware, dubbed XBash piece that is targeting both Linux and Microsoft Windows servers.

Cryptocurrency 87

Cryptocurrency Malware Ransomware Cybercrime 87

Security Affairs

SEPTEMBER 25, 2020

Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. Copyright (C) 2014 Media.net Advertising FZ-LLC All Rights Reserved -->. SecurityAffairs – hacking, DoS). Two vulnerabilities can allow authenticated attackers with local access to the target devices to execute arbitrary code. Pierluigi Paganini.

Software 92

Software DNS Wireless Advertising 92

Security Affairs

JANUARY 28, 2021

The TeamTNT botnet is a crypto-mining malware operation that has been active since April 2020 and that targets Docker installs. The libprocesshider open-source tool is available on Github since 2014 and is able to “hide a process under Linux using the ld preloader.” SecurityAffairs – hacking, malware).

Cryptocurrency 112

Cryptocurrency Cybercrime DNS Malware 112

Security Affairs

OCTOBER 15, 2019

The group has been observed using new tactics, techniques, and procedures (TTPs), it is also using updated malware to evade detection. “the actor moved away from hosting the scripts on dedicated servers and instead started to use Domain Name System (DNS) text records. Pierluigi Paganini.

Cybercrime 61

Cybercrime DNS Malware Advertising 61

Security Affairs

OCTOBER 29, 2020

In early 2019, researchers spotted a new TrickBot backdoor framework dubbed Anchor that was using the anchor_dns tool for abusing the DNS protocol for C2 communications. Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. Copyright (C) 2014 Media.net Advertising FZ-LLC All Rights Reserved -->.

Healthcare 140

Healthcare Ransomware Cybercrime Advertising 140

Security Affairs

SEPTEMBER 14, 2018

“BONDUPDATER, like other OilRig tools, uses DNS tunneling to communicate with its C2 server. The malware checks that only one instance of it is running at one time, it also locks files to determine how long the main PowerShell process has been executing. Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->.

DNS 76

DNS Phishing Government Malware 76