Eset desarrolló un análisis sobre el nuevo ataque de ransomware que se inició en Ucrania, y cifró información de máquinas de todo el mundo, afectando compañías de distintas industrias como bancos, red eléctrica y empresas postales, entre otras. El ransomware (secuestro de información) es el término genérico para referirse a todo tipo de software malicioso que le exige al usuario del equipo el pago de un rescate.
“El día martes un nuevo ataque de ransomware dejó en evidencia que sigue habiendo sistemas desactualizados, falta de soluciones de seguridad y de planes necesarios para evitar una infección. Los ataques continúan creciendo y evolucionando, por lo que desde Eset seguimos apostando a que la prevención y la concientización son claves para evitar ser víctimas.”, aseguró Camilo Gutierrez, jefe del Laboratorio de Eset Latinoamérica
Con el fin de despejar todas las dudas en torno a este nuevo ataque global, la compañía comparte el siguiente cuestionario:
¿Cuáles son las características de este ransomware?
Se destacan tres aspectos que lo diferencian:
Cifrado: no solo cifra los archivos con una extensión determinada, sino que además intenta cifrar, generalmente con éxito, el MBR (Master Boot Record), que es el registro principal de arranque.
Propagación: tiene la propiedad de un gusano, o sea, puede propagarse a través de diferentes técnicas por la red logrando infectar nuevos equipos.
Exploit: hace uso de ellos para explotar vulnerabilidades en equipos que no han sido actualizados o no se les han instalado los parches correspondientes.
¿Es igual de poderoso que WannaCryptor?
Ambos tienen el mismo impacto: impiden el acceso a la información almacenada en el sistema. Sin embargo, este nuevo ataque no solo cifra la información que se encuentra en los equipos, sino que, luego de que se reinicia el sistema, deja inutilizable al sistema operativo, por lo que las víctimas se ven obligadas a realizar una reinstalación.
¿Qué es lo que hace exactamente esta amenaza?
Luego de que el ransomware es ejecutado, crea una tarea programada con el fin de reiniciar el equipo en un determinado tiempo, que no suele ser más de sesenta minutos. Además, verifica si existen carpetas o discos compartidos para propagarse.
A continuación, comienza a cifrar archivos que contengan una determinada extensión. A diferencia de la mayoría del ransomware, este código malicioso no cambia o agrega una extensión particular luego de cifrar cada archivo, una técnica muy utilizada por los atacantes para distinguir a los archivos infectados.
Por último, el malware intentará eliminar los registros de eventos para no dejar rastro alguno, como también ocultar sus acciones.
¿Cómo se propaga de un país a otro? ¿Llegó a Latinoamérica?
La propagación es una característica destacable de esta amenaza. Una vez que logra infectar un equipo, intenta extraer las credenciales del usuario para luego usarlas con PsExec y WMIC para realizar una búsqueda de carpetas y discos compartidos, y así propagarse por la red a la cual el equipo esté conectado. De esta manera, logra infectar equipos situados en distintos países y regiones.
Sí, llegó a Latinoamérica, en la mayoría de los casos a equipos de empresas multinacionales conectados en red con los de otras filiales en Europa o Asia, desde las cuales se propagó con su capacidad de gusano.
¿Qué se puede hacer para evitarlo?
Tanto en hogares como en empresas, contar con una solución antivirus es imprescindible. La misma tiene que estar correctamente configurada, contemplar qué puertos están abiertos y por qué.
Además, la red debe estar configurada y segmentada correctamente, y monitorear constantemente el tráfico para detectar algún tipo de comportamiento fuera de lo normal. Es esencial realizar un estudio detallado de la información más relevante y hacer backup de la misma, para que, en caso de que se cifre, haya una forma de restaurarla.
En cuanto a las contraseñas, es primordial llevar una buena gestión de las mismas, ya que si tan solo una de las máquinas infectadas posee las credenciales de administrador, podría infectar toda la red.
Si estoy infectado y no puedo acceder al sistema, ¿cómo tendría que avanzar?
Se podrían utilizar técnicas forenses para intentar correr en memoria otro sistema operativo y de esta forma acceder a los archivos cifrados. Sin embargo, no hay mucho que se pueda hacer más que aplicar el backup, lo cual sería crucial para evitar la reinstalación del sistema operativo.
En última instancia, si no hay backup, los cibercriminales siempre ofrecerán la opción extorsiva, pero desde ESET no sugerimos de pagar el rescate ya que mientras siga siendo rentable, el ransomware continuará creciendo.
¿Cómo están operando los atacantes? ¿Esperan un pago a cambio?
El proceso para recuperar la información es el mismo al que nos tiene acostumbrado este tipo de ataques. Una vez finalizada la infección, el ransomware emite las instrucciones, en donde los atacantes solicitan un pago en bitcoins, en este caso, equivalente a 300 dólares.
Pie de imagen: Aviso de que el equipo ha sido infectado.
¿Por qué se ha vuelto tan común el secuestro de datos?
Dentro de los puntos destacables se encuentran la falta de concientización y educación a nivel seguridad que tienen muchos usuarios y empresas. Una gran parte todavía no conoce el impacto que puede tener en un modelo de negocio un ciberataque hasta que es víctima y se ve obligada a pagar para recuperar su información.
Ante esta cuestión, a pesar de la velocidad con que circulan las noticias sobre ataques informáticos y los problemas que generan, los cibercriminales encuentran una motivación importante para continuar desarrollando nuevas amenazas.
¿El ataque está armado por una persona o un grupo? ¿Se necesitan conocimientos técnicos altos?
Resulta difícil pensar que una sola persona puede estar detrás de este ataque, ya que es una amenaza que incorpora varias técnicas en cuanto a exploits, propagación, y cifrado, así como para evadir medidas de seguridad. Sin embargo, no podemos asegurar cuántas son las personas involucradas en el desarrollo de un ataque de tal magnitud.
¿Se puede dar con los autores del ataque?
No por ahora. A diferencia de una botnet, por ejemplo, no hay un Centro de Comando y Control al que se conecte la amenaza como para rastrearlo y dar con los autores; y de usarlo, seguramente sería un servidor ajeno al cual atacaron para tomar el control y accederían desde TOR, logrando anonimidad. Por otro lado, el pago del rescate se hace en bitcoins y, por las características de esta criptomoneda, se hace prácticamente imposible rastrear su destino final.
Para más información ingrese al portal de noticias de ESET llamado WeLiveSecurity en: https://www.welivesecurity.com/la-es/2017/06/29/todo-sobre-nuevo-ataque-de-ransomware/
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After some encouragement, he arranged for Qingyang to be a deacon of the Farming Institute.It s a pleasure to meet you, Qingyang said. CBD Gummies for Tinnitus Reviews: How 10 American Office Workers Found Success in Weight Loss Looking at Qingyang s indifferent expression, Tong Yan s mouth curled up slightly and said, Junior brother Qingyang, I have done a lot of homework for this competition, and I also asked you specifically.
It was so fast that at least half of the people present could not see it clearly.These blood bats are fast, or at least high, and it is not easy to kill them.
The food Get Semaglutide for Weight Loss: How to Obtain It he got just disappears. which made the third level living dead furious, so he roughly judged a direction and chased out of the cave.It may attack us again. Lu Feng said, The strength of this blood bat has probably reached the second level.
The position is under the control of Reviews on CBD Gummies for ED: Sorting Through Consumer Experiences and Expectations Senior Brother Cai, who is usually only responsible for pollinating spiritual insects.Almost few monks dared to face the enemy head on. They all dodged, dodged the front of the forest piercing beast, or flew into the air.
Otherwise, who would appear here for no reason Brother Qingyang, why is it you Liang Zhongtian suddenly said in surprise.Standing next to Qin Ruyan is Kou Yuchang. More than a month has passed since the end of the sixth round.
Qingyang held the green bamboo sword in his hand and said, Did that one eyed dragon Lengyu ever catch my senior sister Qin Yi Er didn t play any tricks and said honestly, I caught it, I caught it, I was halfway on my way to track fellow Daoist Deng.Therefore, some good people had already Proper CBD Gummies Reviews for ED: A Detailed Analysis of Their Benefits systematically summarized and compared the strength, common methods, battle experience, etc.
Except for those who are in retreat and it is inconvenient to show up, the others are here.The tall and thin man heard all the conversations between several foundation building monks, including mind enchanting pills, soul searching techniques, and mind disrupting talismans.
Senior Brother Gao was also an excellent disciple when he was young, but his bad luck has Apex Keto on Shark Tank: A New Contender in Keto Supplements delayed him until now.After listening to Liang Zhongtian s words, Niu Cheng said sternly, Can t it be that the friendship between us is no better than your so called guilt You are afraid that Yu Mengmiao will come to settle accounts with Impact Keto ACV Gummies: Redefining Weight Loss Trends in 2025 your Liang family in the future, aren t you Yulingzong wants to settle a score with you Liang Zhongtian looked at Qiao Shan, who was only breathing out but not breathing in, and said expressionlessly, What kind of friendship do we have You two started cheating on me over the years by getting started earlier.
After the blood bat fell to the ground, it struggled a few times before flying again.Coupled with the effect of the Lin armor on his body, Qingyang s body Qi The blood surged, and he couldn t help but vomit a mouthful of blood.
Li Shengbo s situation is considered to be the best.When Kou Yuchang said this, a Qingfeng Temple disciple next to him immediately echoed and laughed twice, saying, Yes, I remember that when he first came in, he had just entered the fourth level of Qi refining, and now he will be refining Qi soon.
There is no time for the masters to fight. Even after such a delay, Xiyue Zhenren s attack arrived.In short, the hope was very slim. But no matter what, if you can improve a little, you will have more confidence.
This time, in order to ensure nothing goes wrong, he even used an extra one before.A large group of sword shadows stood between the second order Mountain Shocking Rat and Qingyang.
As for the remaining people, they were all injured when they got rid of the two third level forest piercing beasts and the sneak attack.Maybe the original plan was to go back one month early, but then I thought I could go back in twenty days.
Is this really all due to luck Qin Ruyan shook his head.Not only Liang Yudong, but also the Liang family ancestor s face changed color.
now that Qingjing Sanren has broken through to the Golden Core stage again, and the entire Qin family is booming, how could they like me, an ordinary disciple with no background at all Chen Biwang did not agree with Qingyang s words, and said, Qingyang Junior brother, you are too humble.Qingyang and Lu Dingshan had no objections and directly accepted the task.
There were still a lot of blood bats left, but at least half of them were injured, just because they were not attacked by those Only when the silver light hits the vital parts can it barely hold on without falling.But the more strength you have, the Ultimate 2025 Guide: Foods That Burn Belly Fat Naturally more confidence you have, so I have no plans to take on tasks from the inner court in the near future.
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The wounded who were wailing in pain had their faces wet after being exposed to the drops of rain and dew.After leaving the dark and gloomy foreign land, under the bright sunshine, Raphael and others squinted their eyes uncomfortably, and then their whole body and mind relaxed.
The alchemists immediately got busy, using magic power to control a stream of particles into the orbit of the accelerator.Kill these demon minions, the spreaders of doom
The leading archbishop shouted loudly, and a large number of knights around him had already loaded their crossbows, and for a while, a sharp rain of arrows appeared in the dense forest.
Lin En Discover the Secrets Behind Rebel Wilson’s Stunning 60 Pound Weight Loss didn t know that just when he took out the two positive and negative uranium element balls, the God of Life and Creation also felt the powerful energy fluctuations.The only thing that made him feel fortunate was that although the guards brought by Stanford were large in number, they did not seem to be carrying the alchemy creations called muskets.
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They are composed of two neutrons and two protons. They have the same nuclear structure as the lighter helium element.Even if Diana s magical empire disappears, there will always be a lot of people.
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If Linn s eyesight and concentration were not good enough, If you focus enough, you might not notice it at all.It is normal to delay some time to solve the problem.
He originally thought it was too early to build a jet plane, but now Dennis taught him a lesson and told him with practical actions, what It s called using magic and alchemy to solve problems End of Chapter How is my research Vice President Tim After Dennis was excited for a while, he turned to look at Tim who was stunned.
He never felt frightened, uneasy or surprised by the appearance of them and the rune chains.Joshua remained silent, as if the person being teased in Linn s words was not him.
Even the archlich Cecil, who had the fastest reaction, only had time to cast Wall of Bones as a protection, and was immediately submerged in the bright light and flames.Although his level of alchemy is far inferior to that of Vittorio, it is already at the top level among the great wizards With the help of advance arrangements, you can almost reach the ultimate level of six ring magic The flickering fluorescent chains quickly wrapped around the beast s limbs and neck, circle after circle, tightly binding it.
The reason why they feel unbelievably fast is because the opponent changes the curvature of space and shortens the distance Being able to directly control time and space through magic and mental power is their greatest technological advantage compared to traditional technological civilization Lin En still has a say in this matter.
The moon medal is stable There are also some wizards who put their hope in finding dozens of new elements that are vacant on the Periodic Table of Elements.End of Chapter Speaker Harrov Anthony, the weakest person present and the least What Did Kelly Clarkson Take to Lose Weight? A Closer Look affected, just watched helplessly as several colleagues beside him were suddenly burned to death, wailing in pain.
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It can be seen that the Speakers They have great trust in the power of this new magic, and they don t even take the tens of thousands of the Holy See s crusade troops in their eyes.
The divine light was extremely fast and covered the entire mine in an instant.Raphael gritted his teeth, and most of the remaining magic power was transformed into a ring shaped barrier to protect everyone, but he didn t have the slightest confidence to be able to stop it.
At the level of magic, there are few things that can go wrong.He even comforted himself secretly. After repelling the church s offensive and regaining the kingdom s territory, the wizards who lacked management skills would definitely need to rely on his power as a king and noble to manage the huge kingdom However, the facts were completely inconsistent with what he expected.
It was hundreds of strange monsters with wings and flaming bodies, almost turning the sky into red.It is said to be an explosion, but it actually uses the principle of rapid expansion of highly compressed gas after combustion, and then uses the Laval tube to accelerate the erupted high speed airflow twice to generate powerful thrust Understanding CBD Oil Side Effects: Risks, Warnings, and Precautions and break through the sound Melissa McCarthy’s Weight Loss Earrings: 3 Fun Facts You’ll Love barrier
This Just like the principle of muskets and artillery
Vittorio suddenly felt his eyes light up, and immediately suggested that when the supersonic production test flight is completed, he must make an exception and award Dennis with a Silver Moon Medal.
The largest one is the alchemy room. It seems to be designed for alchemists and is easy to use.No wonder it only took a hundred years to reach the late stage of foundation building.
This is just under normal circumstances. If Master Lingxu has any extraordinary means, it is not certain who will win in the end.It suddenly became quiet, and you could hear a pin drop.
Elder Jindan was coming, and no one spoke anymore. Even the disciples who were watching the excitement outside and sending people off all closed their mouths, and the surroundings were silent for a while.How much trouble Qingyang caused. Calculating the time, there are still five or six days before everyone agrees to meet The Ultimate Guide to Holland and Barrett ACV Gummies Nutritional Content and Benefits up, so Qingyang is not in a hurry to go out.
Just when Qingyang was thinking about how to face the returning group of Mountain Rats, those Mountain Shocking Rats also made further moves.There are hundreds of thousands of people in Taojiazhuang.
Concentrating one s breath can not only change one s cultivation level, raise or lower one s breath within a certain range, but also completely converge one s breath, making it noticeable to others.He gritted his teeth and said At this critical moment of life and death, no one should hold back.
Master Lingxu and his gang are either on the fourth floor or the fifth floor, or there may be people on both floors.When he first came in, Jiao Chengxin was shocked by Qingyang s youth.
You can only choose one of them. Of course, the Three Yuan Sword Formation is, after all, a powerful sword formation rarely seen in the Immortal Sect, and its power cannot be underestimated.Jade Hoe Master has a success rate of 15. If you are lucky enough, it is possible to refine three Yingying Pills.
It only needs to pass through a few key parts of the monster s body, and then it will be forcibly suppressed in the monster pill.It is worth five thousand spiritual stones. A Qingfeng Temple disciple.
Even Li Shengbo frowned with a solemn expression, as if he was worried about it.But this time, he didn t care so much. He was angry with these people and killed all his Blue Dream Gummies: Relaxation in Every Bite men, and deeply hated Qingyang for repeatedly ruining his good deeds.
He was more than twenty years older than Qingyang. When he first met Qingyang, he was just a disciple of Kai Mai Realm, and his own cultivation level Already at the seventh level of Qi Refining, the two of them were worlds apart.There was also a shelf with only three items placed on it, but they were all packed in exquisite small boxes with simple The restriction that prevents the loss of spiritual power seems to be extraordinary.
Everyone knows that what Qingyang said should be true, so there will be no problem with his grades.Normally, when a Qi Refining monk improves his cultivation level, it takes several days to refine a Qi Gathering Pill.
The group of Mountain Shocking Rats seemed to recognize Li Shengbo and Qingyang as the murderers who had killed countless members of their clan.Come. Seeing the ugly Blue Gummies for ED in Canada: Where to Find and How They Work faces of Liang Chongtian and the other two Yuling Sect monks, Qingyang was heartbroken.
Elder Wusi and others looked at each other, then bowed and said Thank you, Senior Qingyang, for entrusting you with the important task.Both sides were fully prepared, so the battle was extremely fierce from the beginning.
Only Qingyang knew that the One horned Ghost King returned to the Ten Kings Palace this time just to resolve the grievances of the past.Everyone can see that they cannot last long in this situation.
These three rays of light were slightly weaker than the previous ones, but not too different.Master Shi Han s original level of weapon refining was much lower than that of Zhenjun Chiye, which was also lower than Zhenjun Chiye s.
There is not a single branch or leaf in Exploring Average Weight Loss on Semaglutide the whole tree.These two figures were dressed as monks, with solemn expressions on their faces.
Qingyang thought about it. He didn t know anyone here in the Ten Kings Palace.You can go, but not everyone wants my Thousand Buddhas Cave.
If Master Heyi harmed Master Shi Han, Qingyang really wronged him this time.The long browed Ghost King s eyes flickered, and he seemed to have made a small calculation in his mind.
50 of the power of the thunder tribulation was directly consumed, but the remaining 50 was not so easy to deal with.After ACV Burn Keto Apple Cider Vinegar Gummies: Burning Fat with ACV Gummies he pried a few times with his spirit sword, he heard a roar inside, and the entire wall actually shook.
Not long after I took over as the master of the First Hall, I knew about such a thing.Xiaotian Demon King kept his word and did not bother with anything else.
Seeing that if this continues, his life will be in danger, so he can only choose to save his life first.Even if there is a delay in the middle, it will not affect too much time.
Qingyang used this move with great ease, not only because his strength had improved and it was easier to perform the Five Elements Sword Formation, but also because the surrounding environment was more suitable.to advance one level of cultivation in the Nascent Soul stage, it will cost three to four million spirit stones, and in the later stage of the Nascent Soul, it will cost tens of millions.
Eset desarrolló un análisis sobre el nuevo ataque de ransomware que se inició en Ucrania, y cifró información de máquinas de todo el mundo, afectando compañías de distintas industrias como bancos, red eléctrica y empresas postales, entre otras. El ransomware (secuestro de información) es el término genérico para referirse a todo tipo de software malicioso que le exige al usuario del equipo el pago de un rescate.