Sunday, January 6, 2019

RANSOMWARE


                  ->“RANSOMWARE”  is  a  type  of  malware  that   prevents  users  from  accessing  their  system  or  personal  files and  demands  ransom  payment  in  order  to  regain  access.  The  earliest  variants  of   ransomware  were  developed  in  the  late  1980’s  and  payment  was  to  be  sent  via  snail  mail. Today,  ransomware   authors  order  that   payment  be  sent  via  cryptocurrency  or  credit  card.
                  ->”RANSOMWARE”  or  “RANSOM MALWARE”   attempts   to   extort    money  from  a   computer   user   by  infecting   and   taking   control   of   victim’s    machine,   or    files   or  documents  stored   on  it. Typically   ransomware  will  either  lock  the  computer  to   prevent   normal   usage  or  encrypt   the  documents   and   files  on  it  to   prevent   access   to  the  saved    data.

                                                                                            
  ->Ransomware  generates  a  pop  up  window,  webpage  or   email  warning  from  what  looks  like  an  official  authority.Ransomware   is  usually  installed  when  malspam  you  open .Ransomware  can  be   installed   when   you   visit   a  malicious  website.
                                                             TYPES   OF   RANSOMWARE :
                    ->ENCRYPTION    RANSOMWARE
                   ->LOCK    SCREEN   RANSOMWARE
                   ->MASTER BOOT RECORD   (MSB)   RANSOMWARE
              ****ENCRYPTION    RANSOMWARE:
                                                        Encryptes  personal  files   or   folders.
            E.g:- The   concepts  or  contents  of   your  my  documents   folder -documents,spreadsheets,  pictures,videos,

             ****  LOCK    SCREEN   RANSOMWARE:
                                                              “Locks”  the   screen    and   demands     payment.   Presents   a    full  screen  image   that    blocks   all   other   windows .  This   type   is   called   “WinLocker” Ransomware.No   personal  files   are  encrypted.



          ****MASTER BOOT RECORD   RANSOMWARE(MBR):
                                                                       The   MBR   is   a   section   of   computers   hard drive       that   allows   the   operating  system    to   boot   up.   MBR  Ransomware   changes  the  computers  MBR  so   the   normal  boot    process   is   interupted. A ransom  demand  is   displayed    on  screen   instead.
            ->REVETON:
                                          In    2012 ,  a   major  ransomware  worm  known  as  reveton  began  to  spread. It is  also  known  as  “Police trojan”. Its  payload   displays  a   warning   purpotedly  from  a  law  enforcement  agency.   Claiming  that  computer   had  been   used   for  illegal  activities,   such  as  downloading  pirated  software  promoting  terrorism,copyright,etc.
                                               To increase   the  illusion  that  the  computer  is  being  tracked  by  law  enforcement,the  screen  also  displays  computers  IP  address and   webcame.
  ##TO PREVENT RANSOMWARE:
                                                         Keep  all  the   software  on  your  computer   up  to  date.  Make   sure   automatic  updating   is   turned  on  to  get  all  the  latest   microsoft  security  updates  and  browser   related   components.Java   programs   prevent   ransomware.
Other  ANTI MALWARE  programs  are  useful  and   start  your  computer  in  “Safe  Mode”
With  networking.
***********THANK  YOU***********







12 comments:

  1. The risk posed by ransomware is growing rapidly, and nobody is immune – neither public institutions, companies, nor private users. Such malware infects Windows computers, encrypts important files, and then demands that the victim pay a ransom. This post shows how you can take it easy in countering such attacks.

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  2. exactly!! Typically ransomware will either lock the computer to prevent normal usage or encrypt the documents and files on it to prevent access to the saved data.

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  3. There has been a massive growth to collect our data securely!!!!

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  4. good topic...The ransomware is growing rapidly.And it is used in institutions and companies.

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  5. yes,it is a software virus Ransomware spread like a cyclone wind.I hope preventions mentioned here are useful for prevention of such viruses.

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  6. Ransomware is very dangerous virus which lock our computer and does not allow us to access our own data so we all should aware of this virus and use all the prevention methods mentioned above.

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  7. yes,ransomware is a type of malicious software from cryptovirology that threatens to
    publish the victim's data or perpetually block access to it unless a ransom is paid

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  8. Ransomware is a type of malicious software. It is harm to your system the topic is dealt in a effective way

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  9. The topic you shared is very useful . We need to keep our data safe and away from virus. We need to keep our Anti-Virus Software Up to Date in order to prevent malware and keep hardware safe

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  10. ransomeware is a type of software theft where everyone should be aware of.we can reduce such thefts by updating our antivirus software time to time.u have explained it well.

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  11. The term ‘RANSOMWARE’ itself gives the idea of its nature. It is somehow related to some kind of ransom.In simple,we could say it is a type of malware which gets into your computer and locks down all the files. Afterwards it seeks for money from the user in order to get access to the locked files. As a result users doesn't have any other way to regain access to their locked files but to pay the money and get the decryption code.So,we have to be very careful from these attacks and should be aware of some preventive measures.Thanks for discussing such a topic in which everyone should be aware of.

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