# CVE-2021-44228 - Cyber Threat Intelligence These _indicators_ were reported, collected, and generated during the [VulDB CTI analysis](https://vuldb.com/?kb.cti) of the campaign known as _CVE-2021-44228_. The _activity monitoring_ correlates data from social media, forums, chat rooms, and darknet markets. It helps to determine associated actors, specific activities, expected intentions, emerging research, and ongoing attacks. Our unique _predictive model_ uses _big data_ to forecast activities and their characteristics. _Live data_ and more _analysis capabilities_ are available at [https://vuldb.com/?actor](https://vuldb.com/?actor) ## Countries These _countries_ are directly (e.g. origin of attacks) or indirectly (e.g. access by proxy) associated with CVE-2021-44228: * [US](https://vuldb.com/?country.us) * [CN](https://vuldb.com/?country.cn) * [IL](https://vuldb.com/?country.il) * ... There are 3 more country items available. Please use our online service to access the data. ## Actors These _actors_ are associated with CVE-2021-44228 or other actors linked to the campaign. ID | Actor | Confidence -- | ----- | ---------- 1 | [Unknown](https://vuldb.com/?actor.unknown) | High 2 | [APT41](https://vuldb.com/?actor.apt41) | High ## IOC - Indicator of Compromise These _indicators of compromise_ (IOC) indicate associated network resources which are known to be part of research and attack activities of CVE-2021-44228. ID | IP address | Hostname | Actor | Confidence -- | ---------- | -------- | ----- | ---------- 1 | [5.254.101.167](https://vuldb.com/?ip.5.254.101.167) | - | [Unknown](https://vuldb.com/?actor.unknown) | High 2 | [37.120.189.247](https://vuldb.com/?ip.37.120.189.247) | support.lgtron.de | [Unknown](https://vuldb.com/?actor.unknown) | High 3 | [41.157.42.239](https://vuldb.com/?ip.41.157.42.239) | - | [Unknown](https://vuldb.com/?actor.unknown) | High 4 | [45.83.64.1](https://vuldb.com/?ip.45.83.64.1) | - | [Unknown](https://vuldb.com/?actor.unknown) | High 5 | [45.83.64.62](https://vuldb.com/?ip.45.83.64.62) | - | [Unknown](https://vuldb.com/?actor.unknown) | High 6 | [45.83.64.103](https://vuldb.com/?ip.45.83.64.103) | - | [Unknown](https://vuldb.com/?actor.unknown) | High 7 | [45.83.64.253](https://vuldb.com/?ip.45.83.64.253) | - | [Unknown](https://vuldb.com/?actor.unknown) | High 8 | ... | ... | ... | ... There are 28 more IOC items available. Please use our online service to access the data. ## TTP - Tactics, Techniques, Procedures _Tactics, techniques, and procedures_ (TTP) summarize the suspected MITRE ATT&CK techniques used within CVE-2021-44228. This data is unique as it uses our predictive model for actor profiling. ID | Technique | Weakness | Description | Confidence -- | --------- | -------- | ----------- | ---------- 1 | T1008 | CWE-757 | Algorithm Downgrade | High 2 | T1040 | CWE-294 | Authentication Bypass by Capture-replay | High 3 | T1059.007 | CWE-79, CWE-80 | Cross Site Scripting | High 4 | ... | ... | ... | ... There are 11 more TTP items available. Please use our online service to access the data. ## IOA - Indicator of Attack These _indicators of attack_ (IOA) list the potential fragments used for technical activities like reconnaissance, exploitation, privilege escalation, and exfiltration during CVE-2021-44228. This data is unique as it uses our predictive model for actor profiling. ID | Type | Indicator | Confidence -- | ---- | --------- | ---------- 1 | File | `/admin.php/admin/art/data.html` | High 2 | File | `/admin.php/admin/plog/index.html` | High 3 | File | `/admin.php/admin/ulog/index.html` | High 4 | File | `/admin.php/admin/website/data.html` | High 5 | File | `/admin.php?id=siteoptions&social=display&value=0&sid=2` | High 6 | File | `/admin/inbox.php&action=read` | High 7 | File | `/admin/new-content` | High 8 | File | `/admin/posts.php&action=delete` | High 9 | File | `/admin/siteoptions.php&action=displaygoal&value=1&roleid=1` | High 10 | File | `/admin/uesrs.php&&action=delete&userid=4` | High 11 | File | `/admin/uesrs.php&action=type&userrole=Admin&userid=3` | High 12 | File | `/administrator/components/menu/` | High 13 | File | `/admin_page/all-files-update-ajax.php` | High 14 | File | `/api/crontab` | Medium 15 | File | `/application/common.php#action_log` | High 16 | File | `/cdsms/classes/Master.php?f=delete_enrollment` | High 17 | File | `/cgi-bin/kerbynet` | High 18 | File | `/cloud_config/router_post/register` | High 19 | File | `/cms/classes/Master.php?f=delete_service` | High 20 | File | `/config/list` | Medium 21 | File | `/ctpms/admin/?page=individuals/view_individual` | High 22 | File | `/ctpms/classes/Master.php?f=delete_img` | High 23 | File | `/download/` | Medium 24 | File | `/etc/ajenti/config.yml` | High 25 | File | `/etc/cobbler` | Medium 26 | File | `/etc/passwd` | Medium 27 | File | `/goform/AdvSetLanIp` | High 28 | File | `/goform/delAd` | High 29 | File | `/goform/form2Reboot.cgi` | High 30 | File | `/goform/SetNetControlList` | High 31 | File | `/home.asp` | Medium 32 | File | `/index.php?act=api&tag=8` | High 33 | File | `/index.php?p=admin/actions/users/send-password-reset-email` | High 34 | File | `/insurance/editNominee.php` | High 35 | ... | ... | ... There are 303 more IOA items available (file, library, argument, input value, pattern, network port). Please use our online service to access the data. ## References The following list contains _external sources_ which discuss the campaign and the associated activities: * https://isc.sans.edu/forums/diary/Log4Shell+Attacks+Getting+Smarter/28246/ * https://isc.sans.edu/forums/diary/The+Rise+and+Fall+of+log4shell/28372/ * https://pastebin.com/PhnaB0ac * https://www.mandiant.com/resources/apt41-us-state-governments ## Literature The following _articles_ explain our unique predictive cyber threat intelligence: * [VulDB Cyber Threat Intelligence Documentation](https://vuldb.com/?kb.cti) * [Cyber Threat Intelligence - Early Anticipation of Attacks](https://www.scip.ch/en/?labs.20201022) ## License (c) [1997-2022](https://vuldb.com/?kb.changelog) by [vuldb.com](https://vuldb.com/?kb.about). All data on this page is shared under the license [CC BY-NC-SA 4.0](https://creativecommons.org/licenses/by-nc-sa/4.0/). Questions? Check the [FAQ](https://vuldb.com/?kb.faq), read the [documentation](https://vuldb.com/?kb) or [contact us](https://vuldb.com/?contact)!