Emotet first appeared in 2014 as banking malware that attempted to infect computers and steal sensitive information. This malware mostly spreads by spam and phishing emails via infected attachments and embedded malicious URLs. It has worm-like capabilities to spread to other connected computers. It also collects the victim’s contact list and sends itself to the email addresses in the contact list.
In the latest malspam campaign, the emails commonly have a financial theme and appear to come as a reply to a previous transaction by using fake payment remittance notices, invoice attachments or payment details. It now utilizes PowerShell macros in which users are tricked into opening an attached document to enable macros and trigger a PowerShell command which attempts to download Emotet from compromised sites.
Emotet can target legitimate websites with WordPress themes by using arbitrary file upload vulnerability in which file mime type is not checked by server or code while attacker uploads backdoor script and the uploaded folder on given websites is directly accessible. Recently, this malware now provides Malware-as-a-Service (MaaS) to other malware groups to rent access to the Emotet-infected computers to infect them with other malware such as Trickbot Trojan and Ryuk Ransomware.
- Delivers more dangerous payload such as Ryuk ransomware by renting Emotet-infected machines to other malware groups.
- Steals computer data, computer name, system local, operating system (OS) version and running processes.
- Steals User credentials, financial and banking information.
- Steals usernames and passwords of different mail clients.
- Executes backdoor commands from a remote malicious user to connect to malicious websites for sending and receiving information.
- Information Theft: Yes
- Rootkit Capability: Yes
- File Infection: Yes
- Propagation: Yes
- Download Routine: Yes
- Compromise system security - with backdoor capabilities that can execute malicious commands.
- Violation of user privacy - gathers and steals user credentials of various applications.
|Solution Modules||Solution Available||Pattern Branch||Release Date||Detection/Policy/Rules|
|Email Protection||Yes||AS Pattern 4134||4-Oct-18||Spam|
|AS Pattern 4934||26-Sep-19|
|URL Protection||Yes||In the Cloud||Malware Accomplice, Disease Vector, Ransomware|
|Predictive Learning (TrendX)||Yes||In the Cloud||BKDR.Win32.TRX.XXPE50F13005|
|File detection (VSAPI/Smart Scan) and Advanced Threat Scan Engine (ATSE)||Yes||OPR 14.541.00||2-Oct-18||TSPY_EMOTET.THJOBAH|
|Behavioral Monitoring (AEGIS)||Yes||TMTD OPR 1797||15-Jun-18||2980T|
|TMTD OPR 1877||4-Mar-19||FLS.LDX.4555T|
|Deep Discovery Inspector Rule||Yes||Rule 1541: EMOTET - HTTP (Request)|
|Rule 2608: EMOTET - HTTP (Response) - Variant 2|
|Rule 2701: Possible EMOTET - HTTP (Response) - Variant 3|
|Rule 2897: EMOTET - HTTP (Request) - Variant 4|
|Rule 4232: EMOTET - HTTP (Request) - Variant 5|
|Tippingpoint Filter Rule||Yes||28409: HTTP: Emotet Checkin Request|
Make sure to always use the latest pattern available to detect the old and new variants of EMOTET Malware. Please refer to the KB article on Recommendations on how to best protect your network using Trend Micro products.
- Make sure to implement our Best practice configuration for TrendMicro products. Please refer to the KB article on Ransomware: Solutions, Best Practice Configuration and Prevention using Trend Micro products.
- You may also check the article on Submitting suspicious or undetected viruses for file analysis to Technical Support.
For support assistance, contact Trend Micro Technical Support.
- Trend Micro Threat Encyclopedia: TSPY_EMOTET
- Trend Micro Threat Encyclopedia: TSPY_EMOTET.AUSJLA
- Trend Micro Threat Encyclopedia: TSPY_EMOTET.SMD3
- Trend Micro Threat Encyclopedia: TSPY_EMOTET.AUSJKW
- Trend Micro Threat Encyclopedia: TSPY_EMOTET.AUSJKV
- Trend Micro Threat Encyclopedia: TrojanSpy.Win32.EMOTET.TIABOFCY
- Trend Micro Threat Encyclopedia: Trojan.W97M.POWLOAD.THIAHAI
- Trend Micro Threat Encyclopedia: Trojan.W97M.POWLOAD.TIOIBEFV
- Emotet adds new evasion techniques and uses connected devices as proxy servers
- Emotet distributed ransomware loader for nozelesn found via manage detection and response
- Ursnif Emotet and Dridex and Bitpaymer gangs links by a similar loader
- Exploring Emotet examining Emotet activities infrastructure
- New Emote hijacks Windows API evades sandbox analysis
- Emotet returns start spreading via spam botnet