Common Information
| Type | Value |
|---|---|
| Value |
Web Service - T1102 |
| Category | Attack-Pattern |
| Type | Mitre-Enterprise-Attack-Attack-Pattern |
| Misp Type | Cluster |
| Description | Adversaries may use an existing, legitimate external Web service as a means for relaying commands to a compromised system. These commands may also include pointers to command and control (C2) infrastructure. Adversaries may post content, known as a dead drop resolver, on Web services with embedded (and often obfuscated/encoded) domains or IP addresses. Once infected, victims will reach out to and be redirected by these resolvers. Popular websites and social media acting as a mechanism for C2 may give a significant amount of cover due to the likelihood that hosts within a network are already communicating with them prior to a compromise. Using common services, such as those offered by Google or Twitter, makes it easier for adversaries to hide in expected noise. Web service providers commonly use SSL/TLS encryption, giving adversaries an added level of protection. Use of Web services may also protect back-end C2 infrastructure from discovery through malware binary analysis while also enabling operational resiliency (since this infrastructure may be dynamically changed). Detection: Host data that can relate unknown or suspicious process activity using a network connection is important to supplement any existing indicators of compromise based on malware command and control signatures and infrastructure or the presence of strong encryption. Packet capture analysis will require SSL/TLS inspection if data is encrypted. Analyze network data for uncommon data flows (e.g., a client sending significantly more data than it receives from a server). User behavior monitoring may help to detect abnormal patterns of activity. Analyze packet contents to detect communications that do not follow the expected protocol behavior for the port that is being used. (Citation: University of Birmingham C2) Platforms: Linux, macOS, Windows Data Sources: Host network interface, Netflow/Enclave netflow, Network protocol analysis, Packet capture, SSL/TLS inspection Defense Bypassed: Binary Analysis, Log analysis, Firewall Permissions Required: User Requires Network: Yes Contributors: Anastasios Pingios |
| Details | Published | Attributes | CTI | Title | ||
|---|---|---|---|---|---|---|
| Details | Website | 2022-12-01 | 47 | DuckLogs - New Malware Strain Spotted In The Wild | ||
| Details | Website | 2022-11-16 | 0 | Researchers Discover Hundreds of Amazon RDS Instances Leaking Users' Personal Data | ||
| Details | Website | 2022-10-27 | 10 | FormBook Malware Being Distributed as .NET - ASEC BLOG | ||
| Details | Website | 2022-10-25 | 4 | SecureWV 2022 Lucky Th1rt3en: Malware, ransomware, and maturity models | ||
| Details | Website | 2022-10-24 | 797 | Vulnerability Summary for the Week of October 17, 2022 | CISA | ||
| Details | Website | 2022-10-21 | 11 | CVE Advisory - Partial Disclosure CISCO ISE Path Traversal - Yoroi | ||
| Details | Website | 2022-10-18 | 4 | NVD - CVE-2022-21618 | ||
| Details | Website | 2022-10-18 | 4 | NVD - CVE-2022-21626 | ||
| Details | Website | 2022-10-11 | 5 | Exchange Server: New 0-day (not NotProxyShell, CVE-2022-41040, CVE-2022-41082) | ||
| Details | Website | 2022-10-11 | 97 | POLONIUM targets Israel with Creepy malware | WeLiveSecurity | ||
| Details | Website | 2022-10-06 | 4 | S3 Ep103: Scammers in the Slammer (and other stories) [Audio + Text] | ||
| Details | Website | 2022-10-05 | 86 | MAR-10365227-2.v1 - Impacket 2 | CISA | ||
| Details | Website | 2022-10-05 | 86 | MAR-10365227-2.v1 - Impacket 2 | CISA | ||
| Details | Website | 2022-10-04 | 4 | Hackers stole data from US defense org using Impacket, CovalentStealer | ||
| Details | Website | 2022-10-03 | 12 | CERT/CC Vulnerability Note VU#915563 | ||
| Details | Website | 2022-10-03 | 651 | Vulnerability Summary for the Week of September 26, 2022 | CISA | ||
| Details | Website | 2022-09-27 | 21 | Anomali Cyber Watch: Sandworm Uses HTML Smuggling and Commodity RATs, BlackCat Ransomware Adds New Features, Domain Shadowing Is Rarely Detected, and More | ||
| Details | Website | 2022-09-26 | 26 | BlackMatter Ransomware Analysis; The Dark Side Returns | ||
| Details | Website | 2022-09-21 | 1 | Uber’s Intranet Compromised Via Social Engineering | Threat Intelligence | CloudSEK | ||
| Details | Website | 2022-09-16 | 81 | Some Kind of Monster: RaaS Hides Itself Using Traits From Other Malware | ||
| Details | Website | 2022-09-15 | 76 | PrivateLoader: the loader of the prevalent ruzki PPI service | ||
| Details | Website | 2022-09-07 | 0 | Enhancing Cloud Security by Reducing Container Images Through Distroless Techniques | ||
| Details | Website | 2022-09-07 | 0 | Enhancing Cloud Security by Reducing Container Images Through Distroless Techniques | ||
| Details | Website | 2022-09-01 | 102 | Attackers Using FRP (Fast Reverse Proxy) to Attack Korean Companies - ASEC BLOG | ||
| Details | Website | 2022-08-30 | 6 | Multi-stage crypto-mining malware hides in legitimate apps with month-long delay trigger |