the theft cryptocurrencies is one of the most common targets of hackers in recent years. Hackers are constantly discovering new sophisticated ways to attack their victims' systems. For this reason, The researchers security were surprised when they discovered one botnet worth just $ 160, used to steal cryptocurrencies.
It's a Trojan malware named MasterMana Botnet. The botnet sends in bulk Phishing emails with malicious attachments to cryptocurrency users. According to Prevailion researchers, malicious code contained in attachments creates backdoors on the victim's computer and empties his crypto wallets.
"Based on what we have observed, MasterMana Botnet has had a huge impact on many organizations around the world," said Danny Adamitis, Prevailion's chief information officer.
"We estimate that Botnet interacted with about 2.000 machines per week or 72.000 machines during 2019," Adamitis said.
Researchers have found that hackers can infect popular Microsoft files, such as Word, Excel, PowerPoint and Publisher.
The researchers observed the tactics, techniques and procedures (TTPs) of the attack and associated it with the team "Gorgon Group", a well known hackers group that has been active for many years.
"The costs for developing and maintaining the campaign were virtually non-existent. ”, Prevailion reported on exhibition of. The hackers spent a total of 160 dollars alone. 60 dollars were for one Virtual Private Server and 100 dollars for it Trojan AZORult, a Russian malware.
Earlier attacks could have been even more economical, as hackers used a similar one Trojan, the Revenge Rat, which was free until 15 September.
The success of the attacks depends on the version of the Trojan. Researchers believe that the hackers were very clever, increasing the chances of their attacks succeeding.
Hackers have avoided using some popular malware, such as Emotet, and used one older, but equally sophisticated and effective Trojan, which avoids detection by security software.
Researchers said the campaign was active until September 24. However, they believe that hackers will continue on activities their.
“We recommend that cryptocurrencies investors be very careful and protect their staff computer. Two-factor authentication is necessary when this option is available, ”Adamitis said.