Threat Intelligence and Cyber Threat Management (CTM) Protection Update for the 5th week of October 2017

New Detection Technique - Oracle Identity Manager default User Account Logon Attempt (CVE-2017-10151)

A newly discovered vulnerability, CVE-2017-10151, allows an unauthenticated attacker to completely compromise Oracle Identity Manager.

We've added IDS signatures and the following correlation rule to detect this activity:

  • Exploitation & Installation, Weak Configuration - Vulnerable Authentication, Oracle Identity Manager default User Account Logon Attempt (CVE-2017-10151)

New Detection Technique - BadPatch

BadPatch is a trojan that has been leveraged in a targeted campaign in the Middle East, observed by researchers from Palo Alto Networks. BadPatch displays a decoy Microsoft Word file (blank or containing an error message), sometimes with filenames tailored for specific targets. By deleting cached password files from common browsers, BadPatch tricks users into re-entering credentials so that its keylogger feature can record them and use them for data exfiltration. 

We've added IDS signatures and the following correlation rule to detect this activity:

  • System Compromise, Trojan infection, BadPatch

New Detection Technique - Ransomware

In the past week, we've seen an uptick in ransomware activity in the wild. We've added IDS signatures and the following correlation rules to detect new ransomware families:

  • System Compromise, Ransomware infection, Gibon
  • System Compromise, Ransomware infection, LockeR

We also added IDS signatures and updated correlation rules to better detect the following ransomware families:

  • System Compromise, Ransomware infection, Cerber

New Detection Techniques

We've added the following correlation rules as a result of additional recent malicious activity:

  • System Compromise, Malware RAT, MSIL/VB
  • System Compromise, Trojan infection, W32.Gorno
  • System Compromise, Trojan infection, Win32/SniperTgr

Updated Detection Technique - IoT_Reaper

IoT_Reaper is a rapidlyexpanding botnet. While IoT_Reaper borrows some code from the infamous Mirai botnet, it has several key differences such as not cracking weak passwords. Instead, IoT_Reaper only exploits IoT devices. 

We've added IDS signatures and updated the following correlation rule to detect this activity:

  • System Compromise, Trojan infection, IoT Reaper

Updated Detection Technique - Malware SSL Certificates 

We've added new IDS signatures to include the list of certificates identified by Abuse.ch to be associated with malware or botnet activities. The updated correlation rules use this information to detect command and control (C&C) communications related to several malware families, including:

  • System Compromise, C&C Communication, Known malicious SSL certificate
  • System Compromise, Trojan infection, Browser Coinminer SSL Activity

Updated Detection Technique - Sofacy/Sednit/APT28

In October 2014, FireEye published a report about a threat actor that they named APT28.  ATP28 continues to be active today.  As AlienVault's Jaime Blasco described in a blog post, "We have been tracking this threat actor (Sofacy) for a few years when it first appeared on our radar in one of the CVE-2012-0158/CVE-2010-3333 clusters. Based on the lure content contained in the malicious documents, as well as the phishing campaigns we have seen in the past, this group tends to target NATO, Eastern Europe government and military institutions, and defense contractors. We have seen lures related to Ukraine, Chechnya and Georgia that indicates one of the group's objectives is gathering geopolitical intelligence."

We've added IDS signatures and modified the following correlation rule to detect APT28 activity:

  • System Compromise, Trojan infection, APT28 activity

Updated Correlation Rules

We've updated the following correlation rules as a result of recent malicious activity:

  • Delivery & Attack, Malicious website, Phishing activity
  • System Compromise, Malware infection, CoinMiner
  • System Compromise, Malware infection, Generic
  • System Compromise, Trojan infection, Browser Coinminer
  • System Compromise, Trojan infection, Chthonic
  • System Compromise, Trojan infection, Downeks
  • System Compromise, Trojan infection, Generic Keylogger
  • System Compromise, Trojan infection, Keybase Keylogger
  • System Compromise, Trojan infection, Keitaro TDS
  • System Compromise, Trojan infection, Koadic
  • System Compromise, Trojan infection, Ovidiy
  • System Compromise, Trojan infection, Unknown PowerShell