Los cibercriminales que llevaron a cabo la campaña DNSpoinage, armado ahora con el nuevo software de malware

Cybercriminal group that is responsible for DNSpionage operation became more selective in choosing victims and armed themselves with new malware Karkoff to improve effectiveness of their cyberattacks.

UNAccording to FireEye, DNSpionage campaing began in the end of April 2017 and for it responsible cybercriminals that act in interests of Iranian government.

In the previous attacks, with the use of fake websites and DNS breaks, intruders redirected traffic from legitimate domains on malware ones, for the latter were used free digital certificates Let’s Encrypt.

Now group armed with new instrument for remote administering with support of connection with C&C servers through HTTP and DNS, researchers from Cisco Talos.

Since release of Cisco Talos first report about DNSpionage in the end of 2018, cybercriminals enhanced their tactic.

“We discovered some changes to the actorstactics, técnicas y procedimientos (TTP), including the use of a new reconnaissance phase that selectively chooses which targets to infect with malware.”, – Cisco Talos researchers reported.

With the help of espionage methods, criminals manage to bypass protection and create digital fingerprints of system they attack.

Criminals select their victims very carefully and attack them with the use of targeted fishing. They send their victims emails with attached Microsoft Word and Excel documents that contain malware macros. During the attack, malware programs through the macros change their names for «taskwin32.exe» and create planned task «onedrive updater v10.12.5» for ensuring that malware will persist in a system.

DNSpionage
In DNSpionage, upon opening the Excel document, users are greeted with the insult, “haha you are donkey [sic].” The broken English suggests the actor is unlikely a native English speaker.

This month researchers firstly detected in the arsenal of the group malware program on .Net under the name Karkoff. They say that malware is “lightweighted” and needs remote performing through C&servidor de C.

sin embargo, Karkoff possesses one interesting feature. Malware generates journal file where are stores all performed commands with time marks. Asi que, with the use of this journal Karkoff victims can check what and when happened certain events.

Fuente: https://blog.talosintelligence.com

Acerca de Trojan Killer

Trojan Killer llevar portátil en su dispositivo de memoria. Asegúrese de que usted es capaz de ayudar a su PC resistir cualquier amenaza cibernética donde quiera que vaya.

también puedes ver

MageCart en la plataforma de nube Heroku

Los investigadores encontraron Varios MageCart Web skimmers En Heroku Cloud Platform

Investigadores de Malwarebytes informaron sobre la búsqueda de varios skimmers MageCart web en la plataforma de nube Heroku …

Android Spyware CallerSpy

máscaras spyware CallerSpy como una aplicación de chat Android

expertos de Trend Micro descubrieron que el malware CallerSpy, que enmascara como una aplicación de chat y Android, …

Deja una respuesta