These details are as a plain content record, which contains data about the date, IP address, nation and client specialist. We likewise discovered conditions in the record that contains a rundown of boycotted IP goes, the whole nations and a couple of particular client operator strings. On the off chance that one of the conditions coordinated, noxious substance is not served.
We watched one of the areas serving Cerber ransomware for a brief span edge of three hours, and saw around 700 lines in the measurements record. At that point we plotted all the IP delivers to their individual areas on a guide – the outcomes can be found in the guide beneath.
Cerber ransomware is a very compelling ransomware family that has been produced by proficient cybercriminals. Luckily for us, even proficient cybercriminals commit errors – like misconfiguring their servers. Twitter client and analyst @Racco42 saw the error . Through this misconfiguration, we could investigate their insights and take in more about their identity focusing on and who are not focusing on.
More on that underneath, however how about we initially take a gander at how Cerber functions.
Cerber, as most ransomware, is spread by means of reports containing macros. These archives are normally sent as connections in phishing messages, camouflaged to resemble a receipt or some other kind of critical report.
As should be obvious from the listabove, there are a couple of little bait pictures, one dll library and one paired document called "Dontknow.tz." The dll record has a usefulness of an exemplary injector. It makes a suspended procedure, unmaps its executable segment, assigns new memory hinder at a similar address, composes the unloaded malware double in the recently made process, and executes it.
When we stack the unloaded parallel into the debugger, we can rapidly acquire the setup which is put away and encoded within the double.
The arrangement document is in JSON design and depicts which record sorts ought to be boycotted (i.e. which records ought not be encoded by ransomware), which expansions ought to be scrambled (493 distinctive augmentation sorts, essentially media documents, information records, and archives), the charge and control (C&C) address of the concealed administration where the malware's backend runs, which Tor doors ought to be utilized.
At the point when the executable record is propelled it starts the crypting procedure and makes two documents in each scrambled envelope, a .jpg document with guidelines and a further developed .hta document where casualties can discover more data on the most proficient method to pay the payment.
After the encryption is done, the ransomware needs to tell its casualties, so they can pay the payment.
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