MVISION Insights: ABCbot discovery and evolution
Technical Articles ID:
KB95211
Last Modified: 1/21/2022
Last Modified: 1/21/2022
Environment
IMPORTANT: This Knowledge Base article discusses a specific threat that is being automatically tracked by MVISION Insights technology. The content is intended for use by MVISION Insights users, but is provided for general knowledge to all customers. Contact us for more information about MVISION Insights.
Summary
First identified in mid-2021, the ABCbot is coded in the Go language and is continuously being developed. ABCbot includes the capabilities to generate domains, Domain Generation Algorithm (DGA), for C2 traffic and is self-updating. ABCbot, at one point, also included an open-source rootkit identified as ATK Rootkit, which is available on GitHub for modification and use. In late 2021 the rootkit was dropped in favor of a rootkit written by the author of the ABCbot. Other functionalities of the ABCbot include targeting common databases and web servers, using weak password and 0-day vulnerabilities for worm-like propagation, as well as the main objective DDoS attacks.
DDoS attack methods:
tls Attack
tcp Attack
udp Attack
ace Attack
hulk Attack
httpGet Attack
goldenEye Attack
slowloris Attack
bandwidthDrain Attack
tcp Attack
udp Attack
ace Attack
hulk Attack
httpGet Attack
goldenEye Attack
slowloris Attack
bandwidthDrain Attack
Passwords attacks and target vulnerability used:
SSH weak password
FTP weak password
PostgreSQL weak password
Redis weak password
Mssql weak password
Mongo weak password
WebLogic Vulnerability (CVE-2020-14882)
FTP weak password
PostgreSQL weak password
Redis weak password
Mssql weak password
Mongo weak password
WebLogic Vulnerability (CVE-2020-14882)
The McAfee Enterprise ATR Team gathers and analyzes information from multiple open and closed sources before disseminating intelligence reports. This campaign was researched by Netlab360 and shared publicly here.
How to use this article:
- If a Threat Hunting table has been created, use the rules contained to search for malware related to this campaign.
- Review the product detection table and confirm that your environment is at least on the specified content version.
To download the latest content versions, go to the Security Updates page. - Scroll down and review the "Product Countermeasures" section of this article. Consider implementing them if they are not already in place.
- Review
KB91836 - Countermeasures for entry vector threats . - Review KB87843 - Dynamic Application Containment rules and best practices.
- Review KB82925 - Identify what rule corresponds to an Adaptive Threat Protection and Threat Intelligence Exchange event.
This Knowledge Base article discusses a specific threat that is being tracked. The list of IOCs will change over time; check MVISION Insights for the latest IOCs.
Campaign IOC
| Type | Value |
| SHA256 | F36D3996245DBA06AF770D1FAF3BC0615E1124FA179ECF2429162ABD9DF8BBF8 |
| SHA256 | FC614FB4BDA24AE8CA2C44E812D12C0FAB6DD7A097472A35DD12DED053AB8474 |
| SHA256 | A8E6F49731CAF71659D3ECABFDBF3A6CBB8CF6C51177EDF4EC87B2208CA81D38 |
| SHA256 | 06F9D5023883819CF52786BD17C4D90919614101D712CB2EB7B9E98FAD6CEA52 |
| SHA256 | C26C6CF2D3D9E297ED181464328E1EBAE7B5B72AA34E98B331FF02C91FCB06AA |
| SHA256 | 56D677ED192B5010AA780D09C23B8EE8FDFF94D39B20A07C7DE76705E5F8C51F |
| SHA256 | EE06514351644D1A7B5568A6BA202E0451148DF3F20E4367EA94625EBCFD3226 |
| SHA256 | 22B521F8D605635E1082F3F33A993979C37470FE2980956064AA4917EA1B28D5 |
| SHA256 | F7DC1998C6EA802A9DB30A1DFD777E00DE09F498AD1266B46AE16C301E4E0F63 |
| SHA256 | 6B900FF5FFD3AC1E8BC1FE7F921724F3E7F5DACCA1DAD98996011F70093B1A84 |
| SHA256 | 6473EAD2EFBBE010040F42EF1395C06C9DEB7405CA89617D2318A419F90DE4CC |
| SHA256 | 3BF2C3F1ED9AD7EDCB60802533878B5D74951F48C01B73775224C5D159D631BF |
| SHA256 | 4BACBB6A20958B20A0F806B051AE6F6C84FF64FB3DA98FB74A143517469BD162 |
| SHA256 | B7FD3D0188966D606FDB24CB3EC471B9C7424799DBBA09506BEA923CF2BD2E2E |
| DOMAIN | dgixyyfug.tk |
| DOMAIN | dgixyyfug.com |
| DOMAIN | guyfixdyg.tk |
| DOMAIN | guyfixdyg.com |
| DOMAIN | gfgiudyyx.tk |
| DOMAIN | gfgiudyyx.com |
| DOMAIN | xgudyfyig.tk |
| DOMAIN | xgudyfyig.com |
| DOMAIN | yugxdigfy.tk |
| DOMAIN | yugxdigfy.com |
| DOMAIN | gdgiyyfxu.tk |
| DOMAIN | gdgiyyfxu.com |
| DOMAIN | gdiuyyfgx.tk |
| DOMAIN | gdiuyyfgx.com |
| DOMAIN | fgiudxyyg.tk |
| DOMAIN | fgiudxyyg.com |
| DOMAIN | ygfydgxui.tk |
| DOMAIN | ygfydgxui.com |
| DOMAIN | enjuyzkpr.tk |
| DOMAIN | enjuyzkpr.com |
| DOMAIN | rpzkjueyn.tk |
| DOMAIN | rpzkjueyn.com |
| DOMAIN | nkrjpezyu.tk |
| DOMAIN | nkrjpezyu.com |
| DOMAIN | unpeykzjr.tk |
| DOMAIN | unpeykzjr.com |
| DOMAIN | ypnuejrkz.tk |
| DOMAIN | ypnuejrkz.com |
| DOMAIN | nerjyzkup.tk |
| DOMAIN | nerjyzkup.com |
| DOMAIN | nejpzykru.tk |
| DOMAIN | nejpzykru.com |
| DOMAIN | knjpeuzyr.tk |
| DOMAIN | knjpeuzyr.com |
| DOMAIN | zrkyenupj.tk |
| DOMAIN | zrkyenupj.com |
| HOSTNAME | dgixyyfug.pages.dev |
| HOSTNAME | guyfixdyg.pages.dev |
| HOSTNAME | gfgiudyyx.pages.dev |
| HOSTNAME | xgudyfyig.pages.dev |
| HOSTNAME | yugxdigfy.pages.dev |
| HOSTNAME | gdgiyyfxu.pages.dev |
| HOSTNAME | gdiuyyfgx.pages.dev |
| HOSTNAME | fgiudxyyg.pages.dev |
| HOSTNAME | ygfydgxui.pages.dev |
| HOSTNAME | enjuyzkpr.pages.dev |
| HOSTNAME | rpzkjueyn.pages.dev |
| HOSTNAME | nkrjpezyu.pages.dev |
| HOSTNAME | unpeykzjr.pages.dev |
| HOSTNAME | ypnuejrkz.pages.dev |
| HOSTNAME | nerjyzkup.pages.dev |
| HOSTNAME | nejpzykru.pages.dev |
| HOSTNAME | knjpeuzyr.pages.dev |
| HOSTNAME | zrkyenupj.pages.dev |
| IP-DST | 103.209.103.16 |
| URL | http://103.209.103.16:26800/atk.tar.gz |
| URL | http://103.209.103.16:26800/dd.sh |
| URL | http://103.209.103.16:26800/ff.sh |
| URL | http://103.209.103.16:26800/linux64-shell |
| URL | http://103.209.103.16:26800/xlinux |
Minimum Content Versions:
| Content Type | Version |
| V2 DAT (VirusScan Enterprise) | 10179 |
| V3 DAT (Endpoint Security) | 4631 |
Detection Summary
| IOC | Scanner | Detection |
| F36D3996245DBA06AF770D1FAF3BC0615E1124FA179ECF2429162ABD9DF8BBF8 | AVEngine V2 | LINUX/Agent.at |
| AVEngine V3 | LINUX/Agent.at | |
| JTI (ATP Rules) | - | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| FC614FB4BDA24AE8CA2C44E812D12C0FAB6DD7A097472A35DD12DED053AB8474 | AVEngine V2 | Linux/Downloader.bt |
| AVEngine V3 | Linux/Downloader.bt | |
| JTI (ATP Rules) | - | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| A8E6F49731CAF71659D3ECABFDBF3A6CBB8CF6C51177EDF4EC87B2208CA81D38 | AVEngine V2 | Linux/Downloader.bt |
| AVEngine V3 | Linux/Downloader.bt | |
| JTI (ATP Rules) | - | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 06F9D5023883819CF52786BD17C4D90919614101D712CB2EB7B9E98FAD6CEA52 | AVEngine V2 | Linux/Downloader.bt |
| AVEngine V3 | Linux/Downloader.bt | |
| JTI (ATP Rules) | - | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| C26C6CF2D3D9E297ED181464328E1EBAE7B5B72AA34E98B331FF02C91FCB06AA | AVEngine V2 | Linux/Downloader.bq |
| AVEngine V3 | Linux/Downloader.bq | |
| JTI (ATP Rules) | - | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 56D677ED192B5010AA780D09C23B8EE8FDFF94D39B20A07C7DE76705E5F8C51F | AVEngine V2 | Linux/Downloader.bq |
| AVEngine V3 | Linux/Downloader.bq | |
| JTI (ATP Rules) | - | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| EE06514351644D1A7B5568A6BA202E0451148DF3F20E4367EA94625EBCFD3226 | AVEngine V2 | LINUX/Agent.at |
| AVEngine V3 | LINUX/Agent.at | |
| JTI (ATP Rules) | - | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 22B521F8D605635E1082F3F33A993979C37470FE2980956064AA4917EA1B28D5 | AVEngine V2 | LINUX/Agent.at |
| AVEngine V3 | LINUX/Agent.at | |
| JTI (ATP Rules) | - | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| F7DC1998C6EA802A9DB30A1DFD777E00DE09F498AD1266B46AE16C301E4E0F63 | AVEngine V2 | Linux/Downloader.bt |
| AVEngine V3 | Linux/Downloader.bt | |
| JTI (ATP Rules) | - | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 6B900FF5FFD3AC1E8BC1FE7F921724F3E7F5DACCA1DAD98996011F70093B1A84 | AVEngine V2 | Linux/Downloader.bq |
| AVEngine V3 | Linux/Downloader.bq | |
| JTI (ATP Rules) | - | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 6473EAD2EFBBE010040F42EF1395C06C9DEB7405CA89617D2318A419F90DE4CC | AVEngine V2 | LINUX/Agent.at |
| AVEngine V3 | LINUX/Agent.at | |
| JTI (ATP Rules) | - | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 3BF2C3F1ED9AD7EDCB60802533878B5D74951F48C01B73775224C5D159D631BF | AVEngine V2 | LINUX/Agent.at |
| AVEngine V3 | LINUX/Agent.at | |
| JTI (ATP Rules) | - | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 4BACBB6A20958B20A0F806B051AE6F6C84FF64FB3DA98FB74A143517469BD162 | AVEngine V2 | Linux/Downloader.bq |
| AVEngine V3 | Linux/Downloader.bq | |
| JTI (ATP Rules) | - | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| B7FD3D0188966D606FDB24CB3EC471B9C7424799DBBA09506BEA923CF2BD2E2E | AVEngine V2 | LINUX/Agent.at |
| AVEngine V3 | LINUX/Agent.at | |
| JTI (ATP Rules) | - | |
| RP Static | - | |
| RP Dynamic | - |
Aggressive set of Manual Rules to improve protection to block this campaign
IMPORTANT: Always follow best practices when you enable new rules and signatures.
When you implement new rules or signatures, always set them to Report mode first and check the alerts generated. Resolve any issues that arise and then set the rules to Block. This step mitigates against triggering false positives and allows you to refine your configuration.
For more information, see KB87843 - List of and best practices for Endpoint Security Dynamic Application Containment rules.
Virusscan Enterprise - Access Protection Rules:
Prevent programs registering as a service
Host Intrusion Prevention:
Rule ID: 6011 Generic Application Invocation Protection
Rule ID: 1020 Windows Agent Shielding - File Access
Rule ID: 1148 CMD Tool Access by a Network Aware Application
Rule ID: 6010 Generic Application Hooking Protection
Rule ID: 2806 Attempt to create a hardlink to a file
