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#51
16-11-2013, 13:06
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Re: Ojo!! Virus a lo bestia circula en Internet
Bueno... Aviso del US-CERT de hoy, otra ronda del famoso "virus de la policia", asi que los "ventaneros" andad con precaución. Aunque este en ingles, es de facil traducción:
National Cyber Awareness System: TA13-309A: CryptoLocker Ransomware Infections 11/05/2013 10:58 AM EST Original release date: November 05, 2013 | Last revised: November 15, 2013 Systems Affected Microsoft Windows systems running Windows 8, Windows 7, Vista, and XP operating systems Overview US-CERT is aware of a malware campaign that surfaced in 2013 and is associated with an increasing number of ransomware infections. CryptoLocker is a new variant of ransomware that restricts access to infected computers and demands the victim provide a payment to the attackers in order to decrypt and recover their files. As of this time, the primary means of infection appears to be phishing emails containing malicious attachments. Description CryptoLocker appears to have been spreading through fake emails designed to mimic the look of legitimate businesses and through phony FedEx and UPS tracking notices. In addition, there have been reports that some victims saw the malware appear following after a previous infection from one of several botnets frequently leveraged in the cyber-criminal underground. Impact The malware has the ability to find and encrypt files located within shared network drives, USB drives, external hard drives, network file shares and even some cloud storage drives. If one computer on a network becomes infected, mapped network drives could also become infected. CryptoLocker then connects to the attackers’ command and control (C2) server to deposit the asymmetric private encryption key out of the victim’s reach. Victim files are encrypted using asymmetric encryption. Asymmetric encryption uses two different keys for encrypting and decrypting messages. Asymmetric encryption is a more secure form of encryption as only one party is aware of the private key, while both sides know the public key. While victims are told they have three days to pay the attacker through a third-party payment method (MoneyPak, Bitcoin), some victims have claimed online that they paid the attackers and did not receive the promised decryption key. US-CERT and DHS encourage users and administrators experiencing a ransomware infection to report the incident to the FBI at the Internet Crime Complaint Center (IC3). Solution Prevention US-CERT recommends users and administrators take the following preventative measures to protect their computer networks from a CryptoLocker infection: Do not follow unsolicited web links in email messages or submit any information to webpages in links Use caution when opening email attachments. Refer to the Security Tip Using Caution with Email Attachments for more information on safely handling email attachments Maintain up-to-date anti-virus software Perform regular offline backups of all systems to limit the impact of data and/or system loss Apply changes to your Intrusion Detection/Prevention Systems and Firewalls to detect any known malicious activity Secure open-share drives by only allowing writable access to necessary user groups or authenticated users Keep your operating system and software up-to-date with the latest patches Refer to the Recognizing and Avoiding Email Scams (pdf) document for more information on avoiding email scams Refer to the Security Tip Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks Mitigation US-CERT suggests the following possible mitigation steps that users and administrators can implement, if you believe your computer has been infected with CryptoLocker malware: Immediately disconnect the infected system from the wireless or wired network. This may prevent the malware from further encrypting any more files on the network Users who are infected should change all passwords AFTER removing the malware from their system Users who are infected with the malware should consult with a reputable security expert to assist in removing the malware, or users can retrieve encrypted files by the following methods: Restore from backup, Restore from a shadow copy or Perform a system restore. References CryptoLocker Virus: New Malware Holds Computers For Ransom, Demands $300 Within 100 Hours And Threatens To Encrypt Hard Drive CryptoLocker Wants Your Money! CryptoLocker ransomware – see how it works, learn about prevention, cleanup and recovery Microsoft Support – Description of the Software Restriction Policies in Windows XP Microsoft Software Restriction Policies Technical Reference – How Software Restriction Policies Work CryptoLocker Ransomware Information Guide and FAQ Revision History November 5, 2013: Initial Release November 13, 2013: Update to Systems Affected (inclusion of Windows 8) November 15, 2013: Updates to Impact and Prevention sections.
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Buen viento y mar de popa para vuesas mercedes. El mar dara a cada hombre una nueva esperanza, como el dormir le da sueños. (Cristóbal Colón) I've seen things you people wouldn't believe. Attack ships on fire off the shoulder of Orion. I watched c-beams glitter in the dark near Tannhäuser Gate. All those moments will be lost in time, like tears in rain... Time to die. (Roy Batty) sigue mi blog Ganando Barlovento
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#52
18-11-2013, 21:51
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Re: Ojo!! Virus a lo bestia circula en Internet
Me parece que este sí es un virus peligroso, pero el efecto "Pedro y el Lobo" hace que nadie le eche cuenta a este hilo
 Deberías abrir un hilo independiente 
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#53
18-11-2013, 22:24
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Re: Ojo!! Virus a lo bestia circula en Internet
Hasta los mas grandes se infectan
http://www.periodistadigital.com/cie...nacional.shtml para ello... http://www.rebelion.org/noticia.php?id=176983 yo ya estoy linuxando familiares y amigos....la gente flipa con los ordenadores que hiban a tirar y reviven con otro sistema distinto a windows....
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#54
20-11-2013, 17:49
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Re: Ojo!! Virus a lo bestia circula en Internet
Cita:
Cita:
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Buen viento y mar de popa para vuesas mercedes. El mar dara a cada hombre una nueva esperanza, como el dormir le da sueños. (Cristóbal Colón) I've seen things you people wouldn't believe. Attack ships on fire off the shoulder of Orion. I watched c-beams glitter in the dark near Tannhäuser Gate. All those moments will be lost in time, like tears in rain... Time to die. (Roy Batty) sigue mi blog Ganando Barlovento
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#55
20-11-2013, 18:01
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Re: Ojo!! Virus a lo bestia circula en Internet
Cita:
 No, por favor!! que con todo lo que tengo yo que ocultar... Esto se asemeja a aquello de lo justo y lo correcto.  
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Soy pirata porque no tengo más que un barco. si tuviera una flota, sería un conquistador.
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