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Ransomware attack hits UK NHS, Spain Telefonica and many other countries

• Virus Name: WannaCrypt, WannaCry, WanaCrypt0r, WCrypt, WCRY
• Vector: Windows 7 is vulnerable. It uses EternalBlue MS17-010 to propagate.

Malware samples

• hxxps://www.hybrid-analysis.com/sample/ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa?environmentId=100
• hxxps://transfer.sh/PnDIl/CYBERed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.EXE
• hxxps://transfer.sh/ZhnxR/CYBER1be0b96d502c268cb40da97a16952d89674a9329cb60bac81a96e01cf7356830.EXE (main dll)

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WannaCry|WannaDecrypt0r NSA-Cybereweapon-Powered Ransomware Worm

• Virus Name: WannaCrypt, WannaCry, WanaCrypt0r, WCrypt, WCRY
• Vector: All Windows versions before Windows 10 are vulnerable if not patched for MS-17-010. It uses EternalBlue MS17-010 to propagate.

SECURITY BULLETIN AND UPDATES HERE: https://technet.microsoft.com/en-us/library/security/ms17-010.aspx

Malware samples

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WannaCry|WannaDecrypt0r NSA-Cyberweapon-Powered Ransomware Worm

• Virus Name: WannaCrypt, WannaCry, WanaCrypt0r, WCrypt, WCRY
• Vector: All Windows versions before Windows 10 are vulnerable if not patched for MS-17-010. It uses EternalBlue MS17-010 to propagate.
• Ransom: between $300 to $600. There is code to 'rm' (delete) files in the virus. Seems to reset if the virus crashes.
• Backdooring: The worm loops through every RDP session on a system to run the ransomware as that user. It also installs the DOUBLEPULSAR backdoor. It corrupts shadow volumes to make recovery harder. (source: malwarebytes)
• Kill switch: If the website www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com is up the virus exits instead of infecting the host. (source: malwarebytes). This domain has been sinkholed, stopping the spread of the worm. Will not work if proxied (source).

update: A minor variant of the viru

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Create a Wi-Fi hotspot on Linux using nmcli

Original post : https://unix.stackexchange.com/a/310699

nmcli con add type wifi ifname wlan0 con-name Hostspot autoconnect yes ssid Hostspot
nmcli con modify Hostspot 802-11-wireless.mode ap 802-11-wireless.band bg ipv4.method shared
nmcli con modify Hostspot wifi-sec.key-mgmt wpa-psk
nmcli con modify Hostspot wifi-sec.psk "veryveryhardpassword1234"

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#!/usr/bin/python
"""
Exploit for Samba vulnerabilty (CVE-2015-0240) by sleepya

The exploit only targets vulnerable x86 smbd <3.6.24 which 'creds' is controlled by 
ReferentID field of PrimaryName (ServerName). That means '_talloc_zero()'
in libtalloc does not write a value on 'creds' address.

Reference:
- https://securityblog.redhat.com/2015/02/23/samba-vulnerability-cve-2015-0240/

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#!/usr/bin/python
"""
PoC for Samba vulnerabilty (CVE-2015-0240) by sleepya
This PoC does only triggering the bug

Reference:
- https://securityblog.redhat.com/2015/02/23/samba-vulnerability-cve-2015-0240/

#################
Exploitability against CentOS/Ubuntu binaries

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from impacket import smb
from struct import pack
import sys

'''
PoC for trigger EternalBlue bug (BSOD)

Reference:
- http://blogs.360.cn/360safe/2017/04/17/nsa-eternalblue-smb/
'''

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#!/usr/bin/python
from impacket import smb
from struct import pack
import os
import sys
import socket

'''
EternalBlue exploit by sleepya
The exploit might FAIL and CRASH a target system (depended on what is overwritten)

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@@ -55,7 +55,21 @@
         After login, make `client` and `client_in` instance
         to communicate with LINE server
         """
-        raise Exception("Code is removed because of the request of LINE corporation")
+
+        self.transport    = THttpClient.THttpClient(self.LINE_HTTP_URL)
+        self.transport_in = THttpClient.THttpClient(self.LINE_HTTP_IN_URL)
+
+        self.transport.setCustomHeaders(self._headers)

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/*
 * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
 * Digest Algorithm, as defined in RFC 1321.
 * Version 1.1 Copyright (C) Paul Johnston 1999 - 2002.
 * Code also contributed by Greg Holt
 * See http://pajhome.org.uk/site/legal.html for details.
 */

/*
 * Add integers, wrapping at 2^32. This uses 16-bit operations internally