# Medusa Stealer

**URL:** <https://community.emergingthreats.net/t/medusa-stealer/672>\
**Category:** Rule Signatures\
**Created:** [June 19, 2023, 9:04am UTC](https://community.emergingthreats.net/t/medusa-stealer/672 "2023-06-19T09:04:35Z")\
**Posts on this page:** 1\
**Showing post:** 6

<div class="post-metadata">

**Author:** ![Jane0sint](https://sea2.discourse-cdn.com/flex016/user_avatar/community.emergingthreats.net/jane0sint/32/398_2.png) [@Jane0sint](https://community.emergingthreats.net/u/Jane0sint)\
**Post date:** [February 13, 2024, 7:17pm UTC](https://community.emergingthreats.net/t/medusa-stealer/672/6 "2024-02-13T19:17:20Z")

</div>

Hi I want to suggest one more Signature

```auto
alert tcp any any -> any any (msg: "ET MALWARE [ANY.RUN] Meduza Stealer Exfiltration M2";flow: established, to_server;stream_size: server, =, 1;content: "ewogICAgIkdyYWJiZXIiOiBbCiAg"; depth: 28; classtype: credential-theft;classtype: trojan-activity; reference: md5,d1c95dfd50744b0133abd72801b8a0f3; reference: url,community.emergingthreats.net/t/medusa-stealer; metadata: attack_target Client_Endpoint, deployment Perimeter, former_category MALWARE, signature_severity Major, id 4664493, malware_family Meduza, tag stealer, created_at 2024_02_13; sid: 1; rev: 1;)

```

and editing the message of an existing one

```auto
alert tcp $HOME_NET any -> $EXTERNAL_NET 1024: (msg:"ET MALWARE [ANY.RUN] Meduza Stealer Exfiltration M1"; flow:established,to_server; stream_size:server,=,1; content:"ewogICAgImNocm9taXVtX2Jyb3dzZXJzIjog"; startswith; fast_pattern; reference:md5,6c2283c27a3ac1164aad01f982f17db3; reference:url,twitter.com/Jane_0sint/status/1670048531665518592; reference:url,app.any.run/tasks/cf27f0ec-1be0-4353-82fc-d392eaa8b24b; classtype:trojan-activity; sid:2046303; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_06_20, deployment Perimeter, former_category MALWARE, malware_family Meduza, confidence High, signature_severity Critical, updated_at 2023_06_29;)

```

… and one more generic rule

```auto
alert tcp any any -> any 15666 (msg: "ET MALWARE [ANY.RUN] Possible Meduza Stealer Exfiltration (TCP)";flow: established, to_server;stream_size: server, =, 1;content: "ewogICAg";depth: 8; classtype: credential-theft;classtype: trojan-activity; reference: md5,d1c95dfd50744b0133abd72801b8a0f3; reference: url,community.emergingthreats.net/t/medusa-stealer; metadata: attack_target Client_Endpoint, deployment Perimeter, former_category MALWARE, signature_severity Major, id 4664493, malware_family Meduza, tag stealer, created_at 2024_02_13; sid: 2; rev: 1;)

```

> <https://twitter.com/Jane_0sint/status/1757447264266555690?s=20>

✧˚ ༘ ⋆｡˚  
Jane

---

_[View the full topic](https://community.emergingthreats.net/t/medusa-stealer/672)._