Security Tango? It's something you need to do regularly and often - daily is not too often! The simple act of getting on the Internet and downloading email or going to a Web page can expose your computer to malicious crackers who would love to take over your machine for their own use. Don't worry - it's not as hard as you might think! Which Operating System Do You Use?

Kingsoft Antivirus 2012 is a free Internet security program for scanning and defending your computer against malicious files and/or hackers. A quick scan. Offering shareware and freeware downloads, drivers, with reviews, to improve your computers performance (for beginner to advanced users) as well a message forum.

I'm sure that those of you running Linux or a Macintosh used to laugh yourselves sick at all the machinations that your Windows- using friends had to go through to keep themselves safe. But don't get too complacent - your time is here! As Linux and the Mac have become more popular, we've see more viruses for them. Yes, there are verified malware programs out there for both the Macintosh and for Linux. You need to protect yourself. Equally importantly, if you don't at least run an antivirus program, you run the risk of passing a virus on to your Windows friends (assuming any of them actually talk to you). And that's just not being a good net citizen!

Download the free trial version below to get started. Double-click the downloaded file to install the software. Windows NT / Windows 10 64 bit / Windows 10 / Windows Server 2012 / Windows 2008 R2 / Windows 2008. What is the Security Tango? The Security Tango is my name for the dance you have to do every time you want to assure yourself that your computer is free of viruses. Breaking News. Internet Download Manager 6.28 Build 17 with Crack (Registered) Latest Version Free Download; K-Lite Codec Pack Mega 13.4.0 Latest Offline Version Free.

I'll add more as changes in technology warrant. But you get to all of them by that same ! This malware is referred to as “Not. Petya” throughout this Alert. On June 2. 7, 2. 01.

NCCIC . This variant of the Petya malware—referred to as Not. Petya—encrypts files with extensions from a hard- coded list. Additionally, if the malware gains administrator rights, it encrypts the master boot record (MBR), making the infected Windows computers unusable. Not. Petya differs from previous Petya malware primarily in its propagation methods.

The NCCIC Code Analysis Team produced a Malware Initial Findings Report (MIFR) to provide in- depth technical analysis of the malware. In coordination with public and private sector partners, NCCIC is also providing additional indicators of compromise (IOCs) in comma- separated- value (CSV) form for information sharing purposes. Available Files: Description. Not. Petya leverages multiple propagation methods to spread within an infected network. According to malware analysis, Not. Petya attempts the lateral movement techniques below: Ps. Exec - a legitimate Windows administration tool.

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WMI - Windows Management Instrumentation, a legitimate Windows component. Eternal. Blue - the same Windows SMBv. Wanna. Cry. Eternal. Romance - another Windows SMBv. Microsoft released a security update for the MS1.

SMB vulnerability on March 1. Eternal. Blue and Eternal. Romance lateral movement techniques. Microsoft Outlook Express Compact Messages Disabled. Technical Details. NCCIC received a sample of the Not. Petya malware variant and performed a detailed analysis. Based on the analysis, Not.

Petya encrypts the victim’s files with a dynamically generated, 1. ID of the victim. However, there is no evidence of a relationship between the encryption key and the victim’s ID, which means it may not be possible for the attacker to decrypt the victim’s files even if the ransom is paid. It behaves more like destructive malware rather than ransomware.

NCCIC observed multiple methods used by Not. Petya to propagate across a network. The first and—in most cases—most effective method, uses a modified version of the Mimikatz tool to steal the user’s Windows credentials. The cyber threat actor can then use the stolen credentials, along with the native Windows Management Instrumentation Command Line (WMIC) tool or the Microsoft Sys. Internals utility, psexec. Another method for propagation uses the Eternal. Blue exploit tool to target unpatched systems running a vulnerable version of SMBv.

In this case, the malware attempts to identify other hosts on the network by checking the compromised system’s IP physical address mapping table. Next, it scans for other systems that are vulnerable to the SMB exploit and installs the malicious payload. Refer to the malware report, MIFR- 1. The analyzed sample of Not. Petya encrypts the compromised system’s files with a 1. Advanced Encryption Standard (AES) algorithm during runtime.

The malware then writes a text file on the “C: \” drive that includes a static Bitcoin wallet location as well as unique personal installation key intended for the victim to use when making the ransom payment and the user’s Bitcoin wallet ID. Not. Petya modifies the master boot record (MBR) to enable encryption of the master file table (MFT) and the original MBR, and then reboots the system. Based on the encryption methods used, it appears unlikely that the files could be restored, even if the attacker received the victim’s unique key and Bitcoin wallet ID.

The delivery mechanism of Not. Petya during the June 2. Ukrainian tax accounting software, M.

E. Doc. The cyber threat actors used a backdoor to compromise M. E. Doc’s development environment as far back as April 1.

This backdoor allowed the threat actor to run arbitrary commands, exfiltrate files, and download and execute arbitrary exploits on the affected system. Organizations should treat systems with M.

E. Doc installed as suspicious, and should examine these systems for additional malicious activity. While these victims are business entities, other Windows systems are also at risk, such as: those that do not have patches installed for the vulnerabilities in MS1. In this Not. Petya incident, the email address for payment validation was shut down by the email provider, so payment is especially unlikely to lead to data recovery.

These sites are not included in the CSV package as IOCs. Given the overlap of functionality and the similarity of behaviors between Wanna. Cry and Not. Petya, many of the available rulesets can protect against both malware types when appropriately implemented. The following rulesets provided in publically available sources may help detect activity associated with these malware types: sid: 2. ET SCAN Behavioral Unusual Port 4.

Potential Scan or Infection”? Function Table Dereference (CVE- 2. Implement the principle of least privilege. Do not assign administrative access to users unless absolutely needed. Those with a need for administrator accounts should only use them when necessary. Configure access controls, including file, directory, and network share permissions with the principle of least privilege in mind. If a user only needs to read specific files, they should not have write access to those files, directories, or shares.

Secure use of WMI by authorizing WMI users and setting permissions. Utilize host- based firewalls and block workstation- to- workstation communications to limit unnecessary lateral communications.

Disable or limit remote WMI and file sharing. Block remote execution through PSEXEC. Segregate networks and functions.

Harden network devices and secure access to infrastructure devices. Perform out- of- band network management.

Validate integrity of hardware and software. Disable SMBv. 1 and block all versions of SMB at the network boundary by blocking TCP port 4. UDP ports 1. 37- 1. TCP port 1. 39; this applies to all boundary devices. Note: Disabling or blocking SMB may create problems by obstructing access to shared files, data, or devices. Weigh the benefits of mitigation against potential disruptions to users.

Recommended Steps for Remediation. NCCIC strongly encourages organizations contact a local Federal Bureau of Investigation (FBI) field office upon discovery to report an intrusion and request assistance. Maintain and provide relevant logs. Implement a security incident response and business continuity plan. Ideally, organizations should ensure they have appropriate backups so their response is simply to restore the data from a known clean backup. Report Notice. DHS encourages recipients who identify the use of tools or techniques discussed in this document to report information to DHS or law enforcement immediately. To request incident response resources or technical assistance, contact NCCIC at NCCICcustomerservice@hq.

You can also report cyber crime incidents to the Internet Crime Complaint Center (IC3) at https: //www. References. Revision History.

July 1, 2. 01. 7: Initial version. July 3, 2. 01. 7: Updated to include MIFR- 1. Substituted TA- 1.

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