A brief daily summary of what is important in information security. The podcast is published every weekday and designed to get you ready for the day with a brief, usually 5 minute long, summary of current network security related events. The content is late breaking, educational and based on listener input as well as on input received by the SANS Internet Stormcenter. You may submit questions and comments via our contact form at https://isc.sans.edu/contact.html .
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ISC StormCast for Tuesday, April 13th, 2021
Example of Cleartext Cobalt Strike Traffic https://isc.sans.edu/forums/diary/Example+of+Cleartext+Cobalt+Strike+Traffic+Thanks+Brad/27300/ ASA 5506 Series Security Appliances Field Notice https://www.cisco.com/c/en/us/support/docs/field-notices/720/fn72019.html Expired Certificate for PulseSecure VPN Devices https://kb.pulsesecure.net/articles/Pulse_Secure_Article/KB44781/?kA13Z000000fzbR Pwn2Own Summary https://thehackernews.com/2021/04/windows-ubuntu-zoom-safari-ms-exchange.html Tesla Exploited Via Google Chrome Vulnerability https://leethax0.rs/2021/04/ElectricChrome/
ISC StormCast for Monday, April 12th, 2021
No Python Interpreter? This Simple RAT Installs Its Own Copy https://isc.sans.edu/forums/diary/No+Python+Interpreter+This+Simple+RAT+Installs+Its+Own+Copy/27292/ Facebook Mistakingly Suggests Adding Domains To Public Suffix List will Ease Tracking https://publicsuffix.org https://www.facebook.com/business/help/331612538028890?id=428636648170202 Facebook Ads Used to Push Clubhouse Related Malware https://www.ehackingnews.com/2021/04/cybercriminals-used-facebook-ads-to.html Identifying Cobalt Strike DNS Intrastructure https://labs.f-secure.com/blog/detecting-exposed-cobalt-strike-dns-redirectors
ISC StormCast for Monday, April 12th, 2021
No Python Interpreter? This Simple RAT Installs Its Own Copy https://isc.sans.edu/forums/diary/No+Python+Interpreter+This+Simple+RAT+Installs+Its+Own+Copy/27292/ Facebook Mistakingly Suggests Adding Domains To Public Suffix List will Ease Tracking https://publicsuffix.org https://www.facebook.com/business/help/331612538028890?id=428636648170202 Facebook Ads Used to Push Clubhouse Related Malware https://www.ehackingnews.com/2021/04/cybercriminals-used-facebook-ads-to.html Identifying Cobalt Strike DNS Intrastructure https://labs.f-secure.com/blog/detecting-exposed-cobalt-strike-dns-redirectors
ISC StormCast for Friday, April 9th, 2021
Simple Powershell Ransomware Creating a 7Z Archive of your Files https://isc.sans.edu/forums/diary/Simple+Powershell+Ransomware+Creating+a+7Z+Archive+of+your+Files/27286/ HTML Lego: Hidden Phishing at Free JavaScript Site https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/html-lego-hidden-phishing-at-free-javascript-site/ Royal FLush: Privilege Escalation Vulnerability in Azure Functions https://www.intezer.com/blog/cloud-security/royal-flush-privilege-escalation-vulnerability-in-azure-functions/ Cisco Small Business Router Vulnerabilities https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-rce-q3rxHnvm Google Chrome Blocking Port 10080 https://github.com/whatwg/fetch/issues/1191#issuecomment-797659444
ISC StormCast for Friday, April 9th, 2021
Simple Powershell Ransomware Creating a 7Z Archive of your Files https://isc.sans.edu/forums/diary/Simple+Powershell+Ransomware+Creating+a+7Z+Archive+of+your+Files/27286/ HTML Lego: Hidden Phishing at Free JavaScript Site https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/html-lego-hidden-phishing-at-free-javascript-site/ Royal FLush: Privilege Escalation Vulnerability in Azure Functions https://www.intezer.com/blog/cloud-security/royal-flush-privilege-escalation-vulnerability-in-azure-functions/ Cisco Small Business Router Vulnerabilities https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-rce-q3rxHnvm Google Chrome Blocking Port 10080 https://github.com/whatwg/fetch/issues/1191#issuecomment-797659444
ISC StormCast for Thursday, April 8th, 2021
WiFi IDS's and Private MAC Addresses https://isc.sans.edu/forums/diary/WiFi+IDS+and+Private+MAC+Addresses/27288/ Update on PHP Incident https://externals.io/message/113981 Details about Linux Kernel Bluetooth Vulnerabilities https://google.github.io/security-research/pocs/linux/bleedingtooth/writeup.html LinkedIn Leak https://www.ehackingnews.com/2021/04/data-stolen-from-500-million-linkedin.html VMWare Carbon Black Cloud Workload Applicatnce Authentication Bypass https://www.vmware.com/security/advisories/VMSA-2021-0005.html Cisco SD-WAN vManage Software Vulnerability https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vmanage-YuTVWqy
ISC StormCast for Thursday, April 8th, 2021
WiFi IDS's and Private MAC Addresses https://isc.sans.edu/forums/diary/WiFi+IDS+and+Private+MAC+Addresses/27288/ Update on PHP Incident https://externals.io/message/113981 Details about Linux Kernel Bluetooth Vulnerabilities https://google.github.io/security-research/pocs/linux/bleedingtooth/writeup.html LinkedIn Leak https://www.ehackingnews.com/2021/04/data-stolen-from-500-million-linkedin.html VMWare Carbon Black Cloud Workload Applicatnce Authentication Bypass https://www.vmware.com/security/advisories/VMSA-2021-0005.html Cisco SD-WAN vManage Software Vulnerability https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vmanage-YuTVWqy
ISC StormCast for Wednesday, April 7th, 2021
Malspam with Lokibot vs. Outlook and RFCs https://isc.sans.edu/forums/diary/Malspam+with+Lokibot+vs+Outlook+and+RFCs/27282/ SAP Attacks https://us-cert.cisa.gov/ncas/current-activity/2021/04/06/malicious-cyber-activity-targeting-critical-sap-applications QNAP Upates Older EOL Devices https://www.qnap.com/de-de/release-notes/qts/4.3.6.1620/20210322 GIGASET Android Phones Infected by Compromised Update Server https://www.heise.de/news/Gigaset-Malware-Befall-von-Android-Geraeten-des-Herstellers-gibt-Raetsel-auf-6006464.html
ISC StormCast for Wednesday, April 7th, 2021
Malspam with Lokibot vs. Outlook and RFCs https://isc.sans.edu/forums/diary/Malspam+with+Lokibot+vs+Outlook+and+RFCs/27282/ SAP Attacks https://us-cert.cisa.gov/ncas/current-activity/2021/04/06/malicious-cyber-activity-targeting-critical-sap-applications QNAP Upates Older EOL Devices https://www.qnap.com/de-de/release-notes/qts/4.3.6.1620/20210322 GIGASET Android Phones Infected by Compromised Update Server https://www.heise.de/news/Gigaset-Malware-Befall-von-Android-Geraeten-des-Herstellers-gibt-Raetsel-auf-6006464.html
ISC StormCast for Tuesday, April 6th, 2021
LinkedIn Spear-Phishing Campaign Targets Job Hunters https://threatpost.com/linkedin-spear-phishing-job-hunters/165240/ Malicious Text Files (CVE-2019-8761) https://www.paulosyibelo.com/2021/04/this-man-thought-opening-txt-file-is.html Rust Privacy Concerns https://www.bleepingcomputer.com/news/security/most-loved-programming-language-rust-sparks-privacy-concerns/
ISC StormCast for Tuesday, April 6th, 2021
LinkedIn Spear-Phishing Campaign Targets Job Hunters https://threatpost.com/linkedin-spear-phishing-job-hunters/165240/ Malicious Text Files (CVE-2019-8761) https://www.paulosyibelo.com/2021/04/this-man-thought-opening-txt-file-is.html Rust Privacy Concerns https://www.bleepingcomputer.com/news/security/most-loved-programming-language-rust-sparks-privacy-concerns/
ISC StormCast for Monday, April 5th, 2021
C2 Activity: Sandboxes or Real Victims https://isc.sans.edu/forums/diary/C2+Activity+Sandboxes+or+Real+Victims/27272/ Exploitation of Fortinet FortiOS Vulnerabilities https://us-cert.cisa.gov/ncas/current-activity/2021/04/02/fbi-cisa-joint-advisory-exploitation-fortinet-fortios https://www.ic3.gov/Media/News/2021/210402.pdf GitHub Actions Used to Mine Crypto https://therecord.media/github-investigating-crypto-mining-campaign-abusing-its-server-infrastructure/ Large Facebook Leak https://thehackernews.com/2021/04/533-million-facebook-users-phone.html
ISC StormCast for Monday, April 5th, 2021
C2 Activity: Sandboxes or Real Victims https://isc.sans.edu/forums/diary/C2+Activity+Sandboxes+or+Real+Victims/27272/ Exploitation of Fortinet FortiOS Vulnerabilities https://us-cert.cisa.gov/ncas/current-activity/2021/04/02/fbi-cisa-joint-advisory-exploitation-fortinet-fortios https://www.ic3.gov/Media/News/2021/210402.pdf GitHub Actions Used to Mine Crypto https://therecord.media/github-investigating-crypto-mining-campaign-abusing-its-server-infrastructure/ Large Facebook Leak https://thehackernews.com/2021/04/533-million-facebook-users-phone.html
ISC StormCast for Friday, April 2nd, 2021
April 2021 Forensic Quiz https://isc.sans.edu/forums/diary/April+2021+Forensic+Quiz/27266/ Coinhive Domains Used to Warn Victims https://www.troyhunt.com/i-now-own-the-coinhive-domain-heres-how-im-fighting-cryptojacking-and-doing-good-things-with-content-security-policies/ Detecting Attacker's BITS Utility Use https://www.fireeye.com/blog/threat-research/2021/03/attacker-use-of-windows-background-intelligent-transfer-service.html Kansas Man Indicted For Tampering With Public Water System https://www.justice.gov/usao-ks/pr/indictment-kansas-man-indicted-tampering-public-water-system Older QNAP Devices Vulnerable And No Longer Patched https://securingsam.com/new-vulnerabilities-allow-complete-takeover/
ISC StormCast for Friday, April 2nd, 2021
April 2021 Forensic Quiz https://isc.sans.edu/forums/diary/April+2021+Forensic+Quiz/27266/ Coinhive Domains Used to Warn Victims https://www.troyhunt.com/i-now-own-the-coinhive-domain-heres-how-im-fighting-cryptojacking-and-doing-good-things-with-content-security-policies/ Detecting Attacker's BITS Utility Use https://www.fireeye.com/blog/threat-research/2021/03/attacker-use-of-windows-background-intelligent-transfer-service.html Kansas Man Indicted For Tampering With Public Water System https://www.justice.gov/usao-ks/pr/indictment-kansas-man-indicted-tampering-public-water-system Older QNAP Devices Vulnerable And No Longer Patched https://securingsam.com/new-vulnerabilities-allow-complete-takeover/