Recent Security Issues


SELECTED BY THE TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP


Title: Evil Corp rolls out new ransomware, variant of Zeus trojan

Description: Evil Corp, known for the creation of the infamous Zeus trojan, is actively attacking large corporations using fake documents disguised as job applications and resumes. The phishing emails claim to be someone looking for employment after losing their job due to the COVID-19 pandemic. The adversaries also recently released a new ransomware called "WastedLocker," which is believed to be a replacement for the BitPaymer ransomware strain the group used previously.

Reference: https://www.computerweekly.com/news/252485331/Evil-Corps-latest-ransomware-project-spreading-fast


https://www.techrepublic.com/article/cybercriminals-now-spoofing-job-hunters-to-deploy-password-stealing-malware/

Snort SIDs: 54407, 54408


Title: Valak plugin goes after Microsoft Exchange users

Description: The Valak information-stealing malware now has new capabilities to specifically target Microsoft Exchange servers and steal users' email logins. Researchers have discovered at least 30 variants of Valak over the past six months, showing the adversaries are quickly adapting. The newest strain uses what's known as "reply-chain attacks," where the malware injects a malicious phishing email into an otherwise harmless email chain the user previously replied to.

Reference: https://www.bleepingcomputer.com/news/security/valak-malware-gets-new-plugin-to-steal-outlook-login-credentials/

Snort SIDs: 54401 - 54404

Security News


The threat actor behind StrongPity is not deterred, despite being exposed multiple times over the past four years.

https://blog.talosintelligence.com/2020/06/promethium-extends-with-strongpity3.html


A recent study found that Amazon's facial recognition service often misidentifies people and does so at a higher rate for non-white people.

https://threatpost.com/aws-facial-recognition-platform-misidentified-over-100-politicians-as-criminals/156984/


Republicans in Congress introduced a new bill that would roll back encryption standards and force software and hardware makers to include "lawful access" mechanisms.

https://slate.com/technology/2020/06/lawful-access-encrypted-data-act.html


Starbucks, Ford and Hershey are among the big-name brands pausing advertisement on social media platforms, as major companies push Facebook and Twitter to better crack down on hate speech.

https://www.theverge.com/2020/6/28/21306065/starbucks-advertising-social-media-july-facebook-twitter


A group known as DDoSecrets may be setting themselves up as the next WikiLeaks after the group uncovered thousands of police documents and posted them for free online.

https://www.wired.com/story/ddosecrets-blueleaks-wikileaks/


Rice University is working with a non-profit to release open-source technology before November aimed at helping states better prepare for mail-in voting, which is likely to become popular due to the COVID-19 pandemic.

https://news.rice.edu/2020/06/29/rice-researchers-helping-to-ready-vote-by-mail-system-for-november/


The University of California, San Francisco says it paid a $1.14 million ransom to adversaries who infected a limited number of their servers. Researchers at the school have been investigating the efficacy of certain drugs in treating COVID-19.

https://www.cyberscoop.com/ucsf-ransomware-payment-coronavirus/


Google is warning users of its G Suite apps that they need to update their software prior to Aug. 12 or they may stop working.

https://www.zdnet.com/article/google-warns-g-suite-users-update-these-mobile-apps-now-or-they-may-stop-working/


Vulnerabilities with Exploits


COMPILED BY THE QUALYS VULNERABILITY RESEARCH TEAM


This is a list of recent vulnerabilities for which exploits are

available. System administrators can use this list to help in

prioritization of their remediation activities. The Qualys Vulnerability

Research Team compiles this information based on various exploit

frameworks, exploit databases, exploit kits and monitoring of internet

activity.


ID: CVE-2020-2021

Title: Palo Alto Networks PAN-OS Authentication Bypass in SAML Authentication Vulnerability

Vendor: Palo Alto Networks

Description: When Security Assertion Markup Language (SAML) authentication is enabled and the 'Validate Identity Provider Certificate' option is disabled (unchecked), improper verification of signatures in PAN-OS SAML authentication enables an unauthenticated network-based attacker to access protected resources. The attacker must have network access to the vulnerable server to exploit this vulnerability.

CVSS v3 Base Score: 10.0 (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)


ID: CVE-2020-1299

Title: Microsoft LNK Remote Code Execution Vulnerability

Vendor: Microsoft

Description: A remote code execution vulnerability exists in Microsoft Windows that could allow remote code execution if a .LNK file is processed. The attacker could present to the user a removable drive, or remote share, that contains a malicious .LNK file and an associated malicious binary. When the user opens this drive(or remote share) in Windows Explorer, or any other application that parses the .LNK file, the malicious binary will execute code of the attacker's choice, on the target system.

CVSS v3 Base Score: 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)


ID: CVE-2020-10665

Title: Docker Desktop Privilege Escalation Vulnerability

Vendor: Docker

Description: Docker Desktop allows local privilege escalation to NT AUTHORITYSYSTEM because it mishandles the collection of diagnostics with Administrator privileges, leading to arbitrary DACL permissions overwrites and arbitrary file writes.

CVSS v3 Base Score: 6.7 (AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)


ID: CVE-2020-9484

Title: Apache Tomcat Remote Code Execution Vulnerability

Vendor: Apache

Description: When using Apache Tomcat versions if a) an attacker is able to control the contents and name of a file on the server; and b) the server is configured to use the PersistenceManager with a FileStore; and c) the PersistenceManager is configured with sessionAttributeValueClassNameFilter="null" (the default unless a SecurityManager is used) or a sufficiently lax filter to allow the attacker provided object to be deserialized; and d) the attacker knows the relative file path from the storage location used by FileStore to the file the attacker has control over; then, using a specifically crafted request, the attacker will be able to trigger remote code execution via deserialization of the file under their control. Note that all of conditions a) to d) must be true for the attack to succeed.

CVSS v3 Base Score: 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)


ID: CVE-2020-1206

Title: Microsoft Windows SMBv3 Client/Server Remote Code Execution Vulnerability

Vendor: Microsoft

Description: An information disclosure vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests. An attacker who successfully exploited the vulnerability could obtain information to further compromise the usera[euro](TM)s system. To exploit the vulnerability against a server, an unauthenticated attacker could send a specially crafted packet to a target.

CVSS v3 Base Score: 8.6 (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N)


ID: CVE-2020-5825

Title: Symantec Endpoint Protection Arbitrary file Write Vulnerability

Vendor: Symantec

Description: Symantec Endpoint Protection may be susceptible to an arbitrary file write vulnerability, which is a type of issue whereby an attacker is able to overwrite existing files on the resident system without proper privileges.

CVSS v3 Base Score: 5.5 (AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N)


ID: CVE-2020-1170

Title: Microsoft Windows Defender Elevation of Privilege Vulnerability

Vendor: Microsoft

Description: An elevation of privilege vulnerability exists in Windows Defender that leads arbitrary file deletion on the system. To exploit the vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system.

CVSS v3 Base Score: 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)


Prevalent Malware Files


COMPILED BY TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP


SHA 256: e3eeaee0af4b549eae4447fa20cfe205e8d56beecf43cf14a11bf3e86ae6e8bd

MD5: 8193b63313019b614d5be721c538486b

VirusTotal: https://www.virustotal.com/gui/file/e3eeaee0af4b549eae4447fa20cfe205e8d56beecf43cf14a11bf3e86ae6e8bd/details

Typical Filename: SAntivirusService.exe

Claimed Product: SAService

Detection Name: PUA.Win.Dropper.Segurazo::95.sbx.tg


SHA 256: 094d4da0ae3ded8b936428bb7393c77aaedd5efb5957116afd4263bd7edc2188

MD5: a10a6d9dfc0328a391a3fdb1a9fb18db

VirusTotal: https://www.virustotal.com/gui/file/094d4da0ae3ded8b936428bb7393c77aaedd5efb5957116afd4263bd7edc2188/details

Typical Filename: FlashHelperServices.exe

Claimed Product: Flash Helper Service

Detection Name: PUA.Win.Adware.Flashserv::100.sbx.vioc


SHA 256: 85b936960fbe5100c170b777e1647ce9f0f01e3ab9742dfc23f37cb0825b30b5

MD5: 8c80dd97c37525927c1e549cb59bcbf3

VirusTotal: https://www.virustotal.com/gui/file/85b936960fbe5100c170b777e1647ce9f0f01e3ab9742dfc23f37cb0825b30b5/details

Typical Filename: FlashHelperServices.exe

Claimed Product: Flash Helper Services

Detection Name: Win.Exploit.Shadowbrokers::5A5226262.auto.talos


SHA 256: 3f6e3d8741da950451668c8333a4958330e96245be1d592fcaa485f4ee4eadb3

MD5: 47b97de62ae8b2b927542aa5d7f3c858

VirusTotal: https://www.virustotal.com/gui/file/3f6e3d8741da950451668c8333a4958330e96245be1d592fcaa485f4ee4eadb3/details

Typical Filename: qmreportupload.exe

Claimed Product: qmreportupload

Detection Name: Win.Trojan.Generic::95.sbx.tg


SHA 256: c3e530cc005583b47322b6649ddc0dab1b64bcf22b124a492606763c52fb048f

MD5: e2ea315d9a83e7577053f52c974f6a5a

VirusTotal: https://www.virustotal.com/gui/file/c3e530cc005583b47322b6649ddc0dab1b64bcf22b124a492606763c52fb048f/detection

Typical Filename: c3e530cc005583b47322b6649ddc0dab1b64bcf22b124a492606763c52fb048f.bin

Claimed Product: N/A

Detection Name: Win.Dropper.Agentwdcr::1201