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Security Update for Microsoft Windows SMB Server (4013389)
Published: March 14, 2017
SOLUTION: The security patch for Windows 7 is provided in the Microsoft Security Monthly Quality Rollup for. I am trying to find the WannaCry patch for Windows 7 but only XP and 8.1 versions coming up on google.
Version: 1.0
Executive Summary
This security update resolves vulnerabilities in Microsoft Windows. The most severe of the vulnerabilities could allow remote code execution if an attacker sends specially crafted messages to a Microsoft Server Message Block 1.0 (SMBv1) server.
This security update is rated Critical for all supported releases of Microsoft Windows. For more information, see the Affected Software and Vulnerability Severity Ratings section.
The security update addresses the vulnerabilities by correcting how SMBv1 handles specially crafted requests.
Rome total war gold patch download. For more information about the vulnerabilities, see the Vulnerability Information section.
For more information about this update, see Microsoft Knowledge Base Article 4013389.
Affected Software and Vulnerability Severity Ratings
The following software versions or editions are affected. Versions or editions that are not listed are either past their support life cycle or are not affected. To determine the support life cycle for your software version or edition, see Microsoft Support Lifecycle.
The severity ratings indicated for each affected software assume the potential maximum impact of the vulnerability. For information regarding the likelihood, within 30 days of this security bulletin’s release, of the exploitability of the vulnerability in relation to its severity rating and security impact, please see the Exploitability Index in the March bulletin summary.
Note Please see the Security Update Guide for a new approach to consuming the security update information. You can customize your views and create affected software spreadsheets, as well as download data via a restful API. For more information, please see the Security Updates Guide FAQ. As a reminder, the Security Updates Guide will be replacing security bulletins. Please see our blog post, Furthering our commitment to security updates, for more details.
**Operating System** | [**Windows SMB Remote Code Execution Vulnerability – CVE-2017-0143**](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2017-0143) | [**Windows SMB Remote Code Execution Vulnerability – CVE-2017-0144**](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2017-0144) | [**Windows SMB Remote Code Execution Vulnerability – CVE-2017-0145**](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2017-0145) | [**Windows SMB Remote Code Execution Vulnerability – CVE-2017-0146**](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2017-0146) | [**Windows SMB Information Disclosure Vulnerability – CVE-2017-0147**](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2017-0147) | [**Windows SMB Remote Code Execution Vulnerability – CVE-2017-0148**](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2017-0148) | **Updates Replaced** |
**Windows Vista** | |||||||
[Windows Vista Service Pack 2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012598) (4012598) | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | 3177186 in [MS16-114](http://go.microsoft.com/fwlink/?linkid=824826) |
[Windows Vista x64 Edition Service Pack 2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012598) (4012598) | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | 3177186 in [MS16-114](http://go.microsoft.com/fwlink/?linkid=824826) |
**Windows Server 2008** | |||||||
[Windows Server 2008 for 32-bit Systems Service Pack 2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012598) (4012598) | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | 3177186 in [MS16-114](http://go.microsoft.com/fwlink/?linkid=824826) |
[Windows Server 2008 for x64-based Systems Service Pack 2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012598) (4012598) | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | 3177186 in [MS16-114](http://go.microsoft.com/fwlink/?linkid=824826) |
[Windows Server 2008 for Itanium-based Systems Service Pack 2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012598) (4012598) | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | 3177186 in [MS16-114](http://go.microsoft.com/fwlink/?linkid=824826) |
**Windows 7** | |||||||
[Windows 7 for 32-bit Systems Service Pack 1](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012212) (4012212) Security Only[1] | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | None |
[Windows 7 for 32-bit Systems Service Pack 1](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012215) (4012215) Monthly Rollup[1] | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | [3212646](https://support.microsoft.com/kb/3212646) |
[Windows 7 for x64-based Systems Service Pack 1](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012212) (4012212) Security Only[1] | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | None |
[Windows 7 for x64-based Systems Service Pack 1](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012215) (4012215) Monthly Rollup[1] | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | [3212646](https://support.microsoft.com/kb/3212646) |
**Windows Server 2008 R2** | |||||||
[Windows Server 2008 R2 for x64-based Systems Service Pack 1](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012212) (4012212) Security Only[1] | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | None |
[Windows Server 2008 R2 for x64-based Systems Service Pack 1](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012215) (4012215) Monthly Rollup[1] | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | [3212646](https://support.microsoft.com/kb/3212646) |
[Windows Server 2008 R2 for Itanium-based Systems Service Pack 1](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012212) (4012212) Security Only[1] | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | None |
[Windows Server 2008 R2 for Itanium-based Systems Service Pack 1](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012215) (4012215) Monthly Rollup[1] | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | [3212646](https://support.microsoft.com/kb/3212646) |
**Windows 8.1** | |||||||
[Windows 8.1 for 32-bit Systems](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012213) (4012213) Security Only[1] | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | None |
[Windows 8.1 for 32-bit Systems](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012216) (4012216) Monthly Rollup[1] | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | [3205401](https://support.microsoft.com/kb/3205401) |
[Windows 8.1 for x64-based Systems](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012213) (4012213) Security Only[1] | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | None |
[Windows 8.1 for x64-based Systems](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012216) (4012216) Monthly Rollup[1] | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | [3205401](https://support.microsoft.com/kb/3205401) |
**Windows Server 2012 and Windows Server 2012 R2** | |||||||
[Windows Server 2012](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012214) (4012214) Security Only[1] | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | None |
[Windows Server 2012](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012217) (4012217) Monthly Rollup[1] | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | [3205409](https://support.microsoft.com/kb/3205409) |
[Windows Server 2012 R2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012213) (4012213) Security Only[1] | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | None |
[Windows Server 2012 R2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012216) (4012216) Monthly Rollup[1] | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | [3205401](https://support.microsoft.com/kb/3205401) |
**Windows RT 8.1** | |||||||
Windows RT 8.1[2](4012216) Monthly Rollup | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | [3205401](https://support.microsoft.com/kb/3205401) |
**Windows 10** | |||||||
[Windows 10 for 32-bit Systems](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012606)[3](4012606) | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | [3210720](https://support.microsoft.com/en-us/kb/3210720) |
[Windows 10 for x64-based Systems](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012606)[3](4012606) | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | [3210720](https://support.microsoft.com/en-us/kb/3210720) |
[Windows 10 Version 1511 for 32-bit Systems](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4013198)[3](4013198) | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | [3210721](https://support.microsoft.com/en-us/kb/3210721) |
[Windows 10 Version 1511 for x64-based Systems](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4013198)[3](4013198) | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | [3210721](https://support.microsoft.com/en-us/kb/3210721) |
[Windows 10 Version 1607 for 32-bit Systems](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4013429)[3](4013429) | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | [3213986](https://support.microsoft.com/en-us/kb/3213986) |
[Windows 10 Version 1607 for x64-based Systems](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4013429)[3](4013429) | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | [3213986](https://support.microsoft.com/en-us/kb/3213986) |
**Windows Server 2016** | |||||||
[Windows Server 2016 for x64-based Systems](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4013429)[3](4013429) | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | [3213986](https://support.microsoft.com/en-us/kb/3213986) |
**Server Core installation option** | |||||||
[Windows Server 2008 for 32-bit Systems Service Pack 2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012598) (Server Core installation) (4012598) | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | 3177186 in [MS16-114](http://go.microsoft.com/fwlink/?linkid=824826) |
[Windows Server 2008 for x64-based Systems Service Pack 2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012598) (Server Core installation) (4012598) | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | 3177186 in [MS16-114](http://go.microsoft.com/fwlink/?linkid=824826) |
[Windows Server 2008 R2 for x64-based Systems Service Pack 1](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012212) (Server Core installation) (4012212) Security Only[1] | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | None |
[Windows Server 2008 R2 for x64-based Systems Service Pack 1](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012215) (Server Core installation) (4012215) Monthly Rollup[1] | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | [3212646](https://support.microsoft.com/kb/3212646) |
[Windows Server 2012](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012214) (Server Core installation) (4012214) Security Only[1] | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | None |
[Windows Server 2012](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012217) (Server Core installation) (4012217) Monthly Rollup[1] | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | [3205409](https://support.microsoft.com/kb/3205409) |
[Windows Server 2012 R2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012213) (Server Core installation) (4012213) Security Only[1] | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | None |
[Windows Server 2012 R2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4012216) (Server Core installation) (4012216) Monthly Rollup[1] | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | [3205401](https://support.microsoft.com/kb/3205401) |
[Windows Server 2016 for x64-based Systems](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb4013429)[3](Server Core installation) (4013429) | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Critical** Remote Code Execution | **Important** Information Disclosure | **Critical** Remote Code Execution | [3213986](https://support.microsoft.com/en-us/kb/3213986) |
[2]This update is only available via Windows Update.
[3] Windows 10 and Windows Server 2016 updates are cumulative. The monthly security release includes all security fixes for vulnerabilities that affect Windows 10, in addition to non-security updates. The updates are available via the Microsoft Update Catalog. Please note that effective December 13, 2016, Windows 10 and Windows Server 2016 details for the Cumulative Updates will be documented in Release Notes. Please refer to the Release Notes for OS Build numbers, Known Issues, and affected file list information.
*The Updates Replaced column shows only the latest update in any chain of superseded updates. For a comprehensive list of updates replaced, go to the Microsoft Update Catalog, search for the update KB number, and then view update details (updates replaced information is provided on the Package Details tab).
Vulnerability Information
Multiple Windows SMB Remote Code Execution Vulnerabilities
Remote code execution vulnerabilities exist in the way that the Microsoft Server Message Block 1.0 (SMBv1) server handles certain requests. An attacker who successfully exploited the vulnerabilities could gain the ability to execute code on the target server.
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To exploit the vulnerability, in most situations, an unauthenticated attacker could send a specially crafted packet to a targeted SMBv1 server.
The security update addresses the vulnerabilities by correcting how SMBv1 handles these specially crafted requests.
The following table contains links to the standard entry for each vulnerability in the Common Vulnerabilities and Exposures list:
**Vulnerability title** | **CVE number** | **Publicly disclosed** | **Exploited** |
Windows SMB Remote Code Execution Vulnerability | [CVE-2017-0143](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2017-0143) | No | No |
Windows SMB Remote Code Execution Vulnerability | [CVE-2017-0144](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2017-0144) | No | No |
Windows SMB Remote Code Execution Vulnerability | [CVE-2017-0145](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2017-0145) | No | No |
Windows SMB Remote Code Execution Vulnerability | [CVE-2017-0146](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2017-0146) | No | No |
Windows SMB Remote Code Execution Vulnerability | [CVE-2017-0148](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2017-0148) | No | No |
**Vulnerability title** | **CVE number** | **Publicly disclosed** | **Exploited** |
Windows SMB Information Disclosure Vulnerability | [CVE-2017-0147](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2017-0147) | No | No |
For Security Update Deployment information, see the Microsoft Knowledge Base article referenced here in the Executive Summary.
Microsoft Windows 7 Wanna Cry Patch Download
Acknowledgments
Microsoft recognizes the efforts of those in the security community who help us protect customers through coordinated vulnerability disclosure. See Acknowledgments for more information.
Disclaimer
The information provided in the Microsoft Knowledge Base is provided 'as is' without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
Revisions
- V1.0 (March 14, 2017): Bulletin published.
Page generated 2017-05-08 07:15-07:00.
Following the massive Wana Decrypt0r ransomware outbreak from yesterday afternoon, Microsoft has released an out-of-bound patch for older operating systems to protect them against Wana Decrypt0r's self-spreading mechanism.
The operating systems are Windows XP, Windows 8, and Windows Server 2003. These are old operating systems that Microsoft stopped supporting years before and did not receive a fix for the SMBv1 exploit that the Wana Decrypt0r ransomware used yesterday as a self-spreading mechanism.
That mechanism is a modified version of the ETERNALBLUE exploit, an alleged NSA hacking tool leaked last month by a group known as The Shadow Brokers.
Original MS17-010 patch didn't include XP/Win8 fixes
Microsoft had released a fix for that exploit a month before, in March, in security bulletin MS17-010. That security bulletin only included fixes for Windows Vista, Windows 7, Windows 8.1, Windows 10, Windows Server 2008, Windows Server 2012, and Windows Server 2016.
As the SMBv1 is a protocol that comes built-in with all Windows versions, the computers which did not receive MS17-010 remained vulnerable to exploitation via Wana Decrypt0r's self-spreading package.
'Given the potential impact to customers and their businesses, we made the decision to make the Security Update for platforms in custom support only, Windows XP, Windows 8, and Windows Server 2003, broadly available for download,' Microsoft said in a statement. 'This decision was made based on an assessment of this situation, with the principle of protecting our customer ecosystem overall, firmly in mind.'
Researchers believe that Wana Decrypt0r — also referenced online as WCry, WannaCry, WannaCrypt, and WanaCrypt0r — infected over 141,000 computers.
While unconfirmed, many believe older Windows XP and Windows Server versions were the bulk of the infections pool, as they had no way to protect themselves.
Patch systems and disable SMBv1 where possible
Besides installing these out-of-band updates — available for download from here — Microsoft also advises companies and users to disable the SMBv1 protocol, as it's an old and outdated protocol, already superseded by newer versions, such as SMBv2 and SMBv3.
The current Wana Decrypt0r outbreak has been stopped last night after a security researcher found a kill switch. This is only temporary, as the attackers could release a new version of this threat. This is why patching the SMBv1 exploit is a better solution.
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For those affected, you can discuss this ransomware and receive support in the dedicated WanaCrypt0r & Wana Decrypt0r Help & Support Topic. Bleeping Computer also published a technical analysis of the Wana Decrypt0r ransomware.