malware

CallMe S0077

Type: malware
Platform: macOS
Created: 31 May 2017
Last modified: 25 April 2025

CallMe is a Trojan designed to run on Apple OSX. It is based on a publicly available tool called Tiny SHell. [1]

TechniquesBottom 17%

TacticsBottom 21%

Threat groupunranked

CampaignsNone recorded

Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.

Standing S0077

Reach is how much of ATT&CK this malware touches. Coverage is how well defended each thing it does is, as a median per technique rather than a total — a total would just restate the reach. Each figure is ranked against all 825 ATT&CK software entries only where that population actually spreads. Where most of the population shares one value, a percentile would rank the tie instead of the entity, so the raw value is shown and no rank is claimed.

Select	Description	Category	Status	Event	OS	Product	MITRE ATT&CK	CVEs	Severity	Author	Created	Updated	ID	Refs
	Detects DNS queries made by "AppInstaller.EXE". (...)	Generic	test	dns	windows	Sysmon	Command and Control Ingress Tool Transfer	-	medium	frack113	2021-11-24	2023-11-09	7cff77e1-9663-46a3-8260-17f2e1aa9d0a
	Detects execution of GfxDownloadWrapper.exe with a URL as an argument to download file.	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Command and Control Ingress Tool Transfer	-	medium	Victor Sergeev, oscd.community	2020-10-09	2023-10-18	eee00933-a761-4cd0-be70-c42fe91731e7
	Detects changes to the EC2 instance startup script. (...)	Generic	test	cloud_audit	-	AWS CloudTrail · AWS	Execution Command and Scripting Interpreter PowerShell Windows Command Shell Unix Shell	-	high	faloker	2020-02-12	2022-06-07	1ab3c5ed-5baf-417b-bb6b-78ca33f6c3df
	Detects file creation events linked to the Axios NPM supply chain compromise. (...)	Emerging	experimental	file_event	linux	Sysmon	Command and Control Ingress Tool Transfer Initial Access Supply Chain Compromise Compromise Software Supply Chain	-	high	Swachchhanda Shrawan Poudel (Nextron Systems)	2026-04-01	—	b7cb840c-11f6-47f7-b3ef-5524739c9077
	Detects file creation events linked to the Axios NPM supply chain compromise on macOS devices. (...)	Emerging	experimental	file_event	macos	-	Command and Control Ingress Tool Transfer Initial Access Supply Chain Compromise Compromise Software Supply Chain	-	high	Swachchhanda Shrawan Poudel (Nextron Systems)	2026-04-01	—	2db0458c-05c9-4069-a26f-77becd9c8c13
	Detects the Linux-specific execution chain of the plain-crypto-js malicious npm dependency by Axios NPM package, including payload download via curl and detached execution using nohup and python3. (...)	Emerging	experimental	process_creation	linux	Sysmon	Execution Command and Scripting Interpreter Unix Shell Python Command and Control Ingress Tool Transfer Initial Access Supply Chain Compromise Compromise Software Supply Chain	-	high	Swachchhanda Shrawan Poudel (Nextron Systems)	2026-04-01	—	0a23a62d-c5b3-468b-a072-25064a9a8c87
	Detects the macOS-specific execution chain of the plain-crypto-js malicious npm dependency in Axios NPM Package, including AppleScript execution via osascript, payload download, permission modification, execution, and cleanup.	Emerging	experimental	process_creation	macos	-	Execution Command and Scripting Interpreter AppleScript Unix Shell Command and Control Ingress Tool Transfer Initial Access Supply Chain Compromise Compromise Software Supply Chain	-	high	Swachchhanda Shrawan Poudel (Nextron Systems)	2026-04-01	—	a09ee860-31b3-4586-8a68-0ebd74ce0e5f
	Detects the specific Windows execution chain and process tree associated with the Axios NPM supply chain compromise. (...)	Emerging	experimental	process_creation	windows	Sysmon · WinEventLog Security	Execution Command and Scripting Interpreter Windows Command Shell Visual Basic Command and Control Ingress Tool Transfer Initial Access Supply Chain Compromise Compromise Software Supply Chain	-	high	Swachchhanda Shrawan Poudel (Nextron Systems)	2026-04-01	—	f6c27ecc-d890-4452-80e6-2e274a10e097
Splunk	The following analytic detects the use of `bitsadmin.exe` with the `transfer` parameter to download a remote object. (...)	Generic	stable	process_creation	windows	Sysmon · WinEventLog Security · CrowdStrike	Execution, Persistence, Stealth BITS Jobs Command and Control Ingress Tool Transfer	-	medium	Michael Haag, Sittikorn S	2021-03-30	2026-10-02	80630ff4-8e4c-11eb-aab5-acde48001122
	Detects the usage of the unsafe bpftrace option	Generic	test	process_creation	linux	Sysmon	Execution Command and Scripting Interpreter Unix Shell	-	medium	Andreas Hunkeler (@Karneades)	2022-02-11	—	f8341cb2-ee25-43fa-a975-d8a5a9714b39
	Detects execution of Chromium based browser in headless mode	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Stealth Hide Artifacts Hidden Window Command and Control Ingress Tool Transfer	-	low	Nasreddine Bencherchali (Nextron Systems)	2023-09-12	—	ef9dcfed-690c-4c5d-a9d1-482cd422225c
Splunk	This analytic detects file copy operations to remote locations on Cisco ASA devices via CLI or ASDM. (...)	Anomaly	stable	firewall	-	Cisco Secure Firewall · Cisco	Collection Data from Local System Exfiltration Exfiltration Over Alternative Protocol Exfiltration Over Unencrypted Non-C2 Protocol Exfiltration Exfiltration Over C2 Channel	-	medium	Nasreddine Bencherchali, Splunk	2025-11-21	2026-05-13	8a9e5f2b-6d4c-4e7f-9b3a-1c8d7f5e2a9b
Splunk	The following analytic detects the execution of curl commands with insecure flags within the Cisco Isovalent environment. (...)	Anomaly	stable	process_creation	-	Cisco	Command and Control Ingress Tool Transfer	-	medium	Bhavin Patel, Splunk	2026-01-05	2026-10-02	c16c4899-d3f7-461b-92c2-cc0ef5758855
Splunk	This analytic identifies the use of Chromium-based browsers (like Microsoft Edge) running in headless mode with the `--dump-dom` argument. (...)	Generic	stable	network_connection	-	Cisco NVM · Cisco	Execution Command and Scripting Interpreter Command and Control Ingress Tool Transfer	-	medium	Nasreddine Bencherchali, Splunk	2025-07-01	2026-09-22	cd0e816f-f67d-4dbe-a153-480b546e867e
Splunk	This analytic detects unexpected outbound network connections initiated by known webserver processes such as `httpd.exe`, `nginx.exe`, or `tomcat.exe` to common file sharing or public content hosting services like GitHub, Discord CDN, Transfer.sh, or Pastebin. (...)	Generic	stable	network_connection	-	Cisco NVM · Cisco	Initial Access Exploit Public-Facing Application Command and Control Ingress Tool Transfer	-	medium	Nasreddine Bencherchali, Splunk	2025-07-01	2026-09-22	1984f997-3b49-4d4b-a7e9-dc5dbf88370e
Splunk	The following analytic detects potential reverse shell activity by identifying connections involving ports commonly associated with remote access tools, shell listeners, or tunneling utilities. (...)	Anomaly	stable	firewall	-	Cisco Secure Firewall · Cisco	Execution Command and Scripting Interpreter PowerShell Command and Control Ingress Tool Transfer Command and Control Non-Standard Port Privilege Escalation, Stealth Process Injection Command and Control Remote Access Tools Lateral Movement Remote Services	-	medium	Nasreddine Bencherchali, Splunk	2025-04-03	2026-05-13	d85c05c8-42c0-4e4a-87e7-4e1bb3e844e3
Splunk	The following analytic detects outbound connections to commonly abused file sharing and pastebin-style hosting domains. (...)	Anomaly	stable	firewall	-	Cisco Secure Firewall · Cisco	Command and Control Application Layer Protocol Web Protocols Exfiltration Exfiltration Over Web Service Exfiltration to Cloud Storage Command and Control Ingress Tool Transfer Resource Development Obtain Capabilities Tool Command and Control Proxy External Proxy	-	medium	Nasreddine Bencherchali, Splunk	2025-04-03	2026-05-13	f7e5e792-d907-46c1-a58e-4ff974dc462a
Splunk	The following analytic detects file transfers flagged as malware that occurred over non-standard ports (other than 80 and 443). (...)	Anomaly	stable	firewall	-	Cisco Secure Firewall · Cisco	Command and Control Ingress Tool Transfer Command and Control Non-Standard Port	-	medium	Nasreddine Bencherchali, Splunk	2025-04-09	2026-09-22	f26445a8-a6a2-4855-bec0-0c39e52e5b8f
Splunk	The following analytic detects connections with a high Encrypted Visibility Engine (EVE) threat confidence score, indicating potentially malicious behavior within encrypted traffic. (...)	Anomaly	stable	firewall	-	Cisco Secure Firewall · Cisco	Command and Control Application Layer Protocol Web Protocols Command and Control Encrypted Channel Asymmetric Cryptography Exfiltration Exfiltration Over C2 Channel Command and Control Ingress Tool Transfer	-	medium	Nasreddine Bencherchali, Splunk	2025-04-03	2026-05-13	8c15183e-2e70-4db4-86c3-88f8d9129b66
Splunk	This analytic detects intrusion events from known threat activity using Cisco Secure Firewall Intrusion Events. (...)	Anomaly	stable	firewall	-	Cisco Secure Firewall · Cisco	Command and Control Encrypted Channel Asymmetric Cryptography Exfiltration Exfiltration Over C2 Channel	-	medium	Bhavin Patel, Nasreddine Bencherchali, Splunk	2025-05-12	2026-09-22	b71e57e8-c571-4ff1-ae13-bc4384a9e891
Splunk	This analytic detects Lumma Stealer download attempts using Cisco Secure Firewall Intrusion Events. (...)	Anomaly	stable	firewall	-	Cisco Secure Firewall · Cisco	Command and Control Encrypted Channel Asymmetric Cryptography Exfiltration Exfiltration Over C2 Channel	-	medium	Nasreddine Bencherchali, Splunk, Talos NTDR	2025-04-16	2026-05-13	66f22f52-fbae-4be7-a263-561dacb63613
Splunk	This analytic detects Lumma Stealer outbound connection attempts using Cisco Secure Firewall Intrusion Events. (...)	Anomaly	stable	firewall	-	Cisco Secure Firewall · Cisco	Command and Control Encrypted Channel Asymmetric Cryptography Exfiltration Exfiltration Over C2 Channel	-	medium	Nasreddine Bencherchali, Splunk, Talos NTDR	2025-04-16	2026-05-13	66f22f52-fbae-4be7-a263-561dacb63612
Splunk	The following analytic detects file downloads that were classified as malware by Cisco Secure Firewall Threat Defense. (...)	Anomaly	stable	firewall	-	Cisco Secure Firewall · Cisco	Execution Exploitation for Client Execution Command and Control Ingress Tool Transfer	-	medium	Nasreddine Bencherchali, Splunk	2025-04-09	2026-09-22	3cc93f52-5aa6-4b7f-83b9-3430b1436813
Splunk	The following analytic detects potentially suspicious large volumes of data sent by the connection initiator on flows from internal to external networks. (...)	Anomaly	stable	firewall	-	Cisco Secure Firewall · Cisco	Exfiltration Exfiltration Over Alternative Protocol Exfiltration Over Unencrypted Non-C2 Protocol Exfiltration Exfiltration Over C2 Channel Exfiltration Exfiltration Over Web Service Exfiltration to Cloud Storage	-	medium	Nasreddine Bencherchali, Splunk	2025-04-03	2026-05-13	3d8536b6-52b4-4c3e-b695-3f2e90bb22be
Splunk	The following analytic detects repeated malware file downloads initiated by the same internal host (src) within a short time window. (...)	Anomaly	stable	firewall	-	Cisco Secure Firewall · Cisco	Command and Control Ingress Tool Transfer Stealth Obfuscated Files or Information	-	medium	Nasreddine Bencherchali, Splunk	2025-04-09	2026-09-22	aeff2bb5-3483-48d4-9be8-c8976194be1e
Splunk	This analytic identifies Snort intrusion signatures that have been triggered by ten or more distinct internal IP addresses within a one-hour window. (...)	Anomaly	stable	firewall	-	Cisco Secure Firewall · Cisco	Command and Control Ingress Tool Transfer Stealth Obfuscated Files or Information	-	medium	Nasreddine Bencherchali, Splunk	2025-04-16	2026-05-13	a4c76d0a-56b6-44be-814b-939746c4d406
Splunk	The following analytic detects outbound connections initiated by command-line tools such as curl or wget. (...)	Anomaly	stable	firewall	-	Cisco Secure Firewall · Cisco	Command and Control Application Layer Protocol Web Protocols Execution Command and Scripting Interpreter Command and Control Ingress Tool Transfer Execution, Persistence, Privilege Escalation Scheduled Task/Job Cron	-	medium	Nasreddine Bencherchali, Splunk	2025-04-03	2026-05-13	173a1cb9-1814-4128-a9dc-f29dade89957
	Various protocols maybe used to put data on the device for exfil or infil	Generic	test	authentication	-	Cisco AAA · Cisco	Collection Archive Collected Data Archive via Utility Collection Data Staged Command and Control Ingress Tool Transfer	-	low	Austin Clark	2019-08-12	2023-01-04	5e51acb2-bcbe-435b-99c6-0e3cd5e2aa59	-
	Detects a suspicious command line execution that includes an URL and AppData string in the command l (...)	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Execution Command and Scripting Interpreter PowerShell Windows Command Shell Command and Control Ingress Tool Transfer	-	medium	Florian Roth (Nextron Systems), Jonhnathan Ribeiro, oscd.community	2019-01-16	2021-11-27	1ac8666b-046f-4201-8aba-1951aaec03a3
	Adversaries can use curl to download payloads remotely and execute them. (...)	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Command and Control Ingress Tool Transfer Stealth System Binary Proxy Execution	-	high	Sreeman, Nasreddine Bencherchali (Nextron Systems)	2020-01-13	2024-03-05	21dd6d38-2b18-4453-9404-a0fe4a0cc288
Splunk	The following analytic detects the execution of the curl utility where the command line includes percent-encoded characters and explicit file output options (such as -o or --output). (...)	Anomaly	stable	process_creation	windows · linux	CrowdStrike · Sysmon · WinEventLog Security	Command and Control Ingress Tool Transfer Stealth Obfuscated Files or Information	-	medium	Nasreddine Bencherchali, Splunk	2026-03-03	2026-05-13	9a8d5516-4c5e-11ef-9d42-acde48001122
	Detects a curl process start on linux, which indicates a file download from a remote location or a s (...)	Generic	test	process_creation	linux	Sysmon	Command and Control Ingress Tool Transfer	-	low	Nasreddine Bencherchali (Nextron Systems)	2022-09-15	—	ea34fb97-e2c4-4afb-810f-785e4459b194
	Detects a curl process start on Windows, which could indicates a file download from a remote locatio (...)	Hunting	test	process_creation	windows	Sysmon · WinEventLog Security	Command and Control Ingress Tool Transfer	-	low	Florian Roth (Nextron Systems)	2022-07-05	2023-02-21	bbeaed61-1990-4773-bf57-b81dbad7db2d
	Detects the usage of curl.exe, KeyScramblerLogon, or other non-standard/suspicious processes used to create Autoit3.exe. (...)	Emerging	test	file_event	windows	Sysmon	Execution Command and Scripting Interpreter Command and Control Ingress Tool Transfer	-	medium	Micah Babinski	2023-10-15	—	1a433e1d-03d2-47a6-8063-ece992cf4e73
Splunk	The following analytic detects the use of Certify or Certipy tools to enumerate Active Directory Certificate Services (AD CS) environments. (...)	Generic	stable	process_creation	windows	Sysmon · WinEventLog Security · CrowdStrike	Command and Control Ingress Tool Transfer Credential Access Steal or Forge Authentication Certificates	-	medium	Steven Dick	2023-07-28	2026-05-13	e6d2dc61-a8b9-4b03-906c-da0ca75d71b8
Splunk	The following analytic identifies the use of SNICat tool commands within the TLS SNI field, indicating potential data exfiltration attempts. (...)	Generic	experimental	network_connection	-	Zeek	Exfiltration Exfiltration Over C2 Channel	-	medium	Shannon Davis, Splunk	2020-11-05	2026-05-13	82d06410-134c-11eb-adc1-0242ac120002
	The PowerShell implementation of DNSCat2 calls nslookup to craft queries. (...)	Unsupported	unsupported	process_creation	windows	Sysmon · WinEventLog Security	Command and Control Application Layer Protocol DNS Command and Control Data Obfuscation Protocol or Service Impersonation Exfiltration Exfiltration Over C2 Channel	-	high	Cian Heasley	2020-08-08	2023-02-24	b11d75d6-d7c1-11ea-87d0-0242ac130003
	Detects the use of wget to download content to a suspicious directory	Generic	test	process_creation	linux	Sysmon	Command and Control Ingress Tool Transfer	-	medium	Joseliyo Sanchez, @Joseliyo_Jstnk	2023-06-02	—	cf610c15-ed71-46e1-bdf8-2bd1a99de6c4
Splunk	The following analytic detects suspicious file downloads by the Telegram application on a Windows system. (...)	Generic	stable	create_stream_hash	windows	Sysmon	Command and Control Ingress Tool Transfer	-	medium	Teoderick Contreras, Splunk	2021-05-07	2026-05-13	58194e28-ae5e-11eb-8912-acde48001122
	Detects download of certain file types from hosts with dynamic DNS names (selected list)	Generic	test	proxy	-	-	Command and Control Dynamic Resolution Command and Control Ingress Tool Transfer	-	medium	Florian Roth (Nextron Systems)	2017-11-08	2023-05-18	195c1119-ef07-4909-bb12-e66f5e07bf3c
	Detects communication to C2 servers mentioned in the operational notes of the ShadowBroker leak of E (...)	Emerging	test	firewall	-	-	Exfiltration Exfiltration Over C2 Channel	-	high	Florian Roth (Nextron Systems)	2017-04-15	2021-11-27	881834a4-6659-4773-821e-1c151789d873
	Detects suspicious shell commands used in various Equation Group scripts and tools	Generic	test	-	linux	-	Execution Command and Scripting Interpreter Unix Shell	-	high	Florian Roth (Nextron Systems)	2017-04-09	2021-11-27	41e5c73d-9983-4b69-bd03-e13b67e9623c
	Detects executable access via webdav6. (...)	Generic	test	-	-	HTTP · Zeek	Command and Control Ingress Tool Transfer	-	medium	SOC Prime, Adam Swan	2020-05-01	2021-11-27	aac2fd97-bcba-491b-ad66-a6edf89c71bf
	Detects execution of the IEExec utility to download and execute files	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Command and Control Ingress Tool Transfer	-	high	Nasreddine Bencherchali (Nextron Systems)	2022-05-16	2023-11-09	9801abb8-e297-4dbf-9fbd-57dde0e830ad
	Detects execution of a browser process with a URL argument pointing to a file with a potentially interesting extension. (...)	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Command and Control Ingress Tool Transfer	-	medium	Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems)	2022-01-11	2025-10-27	94771a71-ba41-4b6e-a757-b531372eaab6
	Detects when a user downloads a file from an IP based URL using CertOC.exe	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Command and Control Ingress Tool Transfer	-	high	Nasreddine Bencherchali (Nextron Systems)	2023-10-18	—	b86f6dea-0b2f-41f5-bdcc-a057bd19cd6a
Splunk	The following analytic detects the use of download or file reading utilities from Windows, Linux or MacOS to download or read the contents of a file from a remote or local source and pipe it directly to a shell for execution. (...)	Generic	stable	process_creation	windows · linux	Sysmon · WinEventLog Security · CrowdStrike	Command and Control Ingress Tool Transfer	CVE-2021-44228	medium	Michael Haag, Nasreddine Bencherchali, Splunk, DipsyTipsy	2025-10-24	2026-09-01	26f86252-1549-45e1-a212-eb26840e86bc
	Detects execution of the Notepad++ updater (gup) from a process other than Notepad++ to download files.	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Command and Control Ingress Tool Transfer	-	high	Nasreddine Bencherchali (Nextron Systems)	2022-06-10	2023-03-02	44143844-0631-49ab-97a0-96387d6b2d7c
	Detects usage of bitsadmin downloading a file	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Execution, Persistence, Stealth BITS Jobs Command and Control Ingress Tool Transfer Stealth Masquerading Rename Legitimate Utilities	-	medium	Michael Haag, FPT.EagleEye	2017-03-09	2023-02-15	d059842b-6b9d-4ed1-b5c3-5b89143c6ede
	Detects usage of bitsadmin downloading a file to a suspicious target folder	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Execution, Persistence, Stealth BITS Jobs Command and Control Ingress Tool Transfer Stealth Masquerading Rename Legitimate Utilities	-	high	Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems)	2022-06-28	2025-12-10	2ddef153-167b-4e89-86b6-757a9e65dcac

Title

Description

CallMe S0077

CallMe MITRE reference S0077

Standing S0077

Reach

Coverage

CallMe detections S0077