Procedure examples

CaddyWiper can modify ACL entries to take ownership of files.

JPIN can use the command-line utility cacls.exe to change file permissions.

BitPaymer can use icacls /reset and takeown /F to reset a targeted executable's permissions and then take ownership.

Diskpart can be used to display, set, or clear attributes of a disk or volume.

COATHANGER will set the GID of `httpsd` to 90 when infected.

P.A.S. Webshell has the ability to modify file permissions.

Bundlore changes the permissions of a payload using the command chmod -R 755.

The Black Basta binary can use `chmod` to gain full permissions to targeted files.

OSX_OCEANLOTUS.D has changed permissions of a second-stage payload to an executable via chmod.

Penquin can add the executable flag to a downloaded file.

Kinsing has used chmod to modify permissions on key files for use.

XCSSET uses the chmod +x command to grant executable permissions to the malicious file.

DRYHOOK has the ability to remount the filesystem as “read-write” to make changes and then restores it to “read-only” prior to killing processes to apply the modifications.

OSX/Shlayer can use the chmod utility to set a file as executable, such as chmod 777 or chmod +x.

Dok gives all users execute permissions for the application using the command chmod +x /Users/Shared/AppStore.app.

Torisma is only delivered to a compromised host if the victim's IP address is on an allow-list.

Stuxnet checks for specific operating systems on 32-bit machines, Registry keys, and dates for vulnerabilities, and will exit execution if the values are not met.

RansomHub will terminate without proceeding to encryption if the infected machine is on a list of allowlisted machines specified in its configuration.

Tsundere Botnet has checked the victim machine’s location to avoid infecting in the Commonwealth of Independent States (CIS) region.

ROAMINGHOUSE can change its execution method to create a batch file in the startup folder that executes a legitimate executable if a McAfee product is detected.

TONESHELL has an exception handler that executes when ESET antivirus applications `ekrn.exe` and `egui.exe` are not found and directly injects its code into waitfor.exe using Native Windows API including `WriteProcessMemory` and `CreateRemoteThreadEx`.

EnvyScout can call window.location.pathname to ensure that embedded files are being executed from the C: drive, and will terminate if they are not.

BOLDMOVE verifies it is executing from a specific path during execution.

SystemBC has checked if the last characters of DNS server names end in .bit before initializing C2 communication. SystemBC has identified running processes associated with anti-virus solutions to include `a2guard.exe` to determine whether it executes or not.

ShrinkLocker will exit its "main" function if the victim domain name does not match provided criteria.

Apostle's ransomware variant requires that a base64-encoded argument is passed when executed, that is used as the Public Key for subsequent encryption operations. If Apostle is executed without this argument, it automatically runs a self-delete function.

Raspberry Robin will check for the presence of several security products on victim machines and will avoid UAC bypass mechanisms if they are identified. Raspberry Robin can use specific cookie values in HTTP requests to command and control infrastructure to validate that requests for second stage payloads originate from the initial downloader script.

CHIMNEYSWEEP can execute a task which leads to execution if it finds a process name containing “creensaver.”

On macOS, LightSpy checks the existence of a process identification number (PID) file, `/Users/Shared/irc.pid`, to verify if LightSpy is currently running.

Anchor can terminate itself if specific execution flags are not present.

Exbyte checks for the presence of a configuration file before completing execution.

LunarLoader can use the DNS domain name of a compromised host to create a decryption key to ensure a malicious payload can only execute against the intended targets.

PureCrypter code contains an ExclusionRegionNames option where it can compare the results of `kernel32!GetGeoInfo` with a list of regions.

DarkGate uses per-victim links for hosting malicious archives, such as ZIP files, in services such as SharePoint to prevent other entities from retrieving them.

LockBit 3.0 can make execution dependent on specific parameters including a unique passphrase and the system language of the targeted host not being found on a set exclusion list.

LODEINFO can halt execution if the “en_US” locale is identified on a victim's machine.

Sagerunex uses a "servicemain" function to verify its environment to ensure it can only be executed as a service, as well as the existence of a configuration file in a specified directory.

GlassWorm has utilized logic to avoid executing on Russian based devices.

RedLine Stealer has built in settings to not operate based on geolocation or country of the victim host.

BPFDoor creates a zero byte PID file at `/var/run/haldrund.pid`. BPFDoor uses this file to determine if it is already running on a system to ensure only one instance is executing at a time.

Akira _v2 will fail to execute if the targeted `/vmfs/volumes/` path does not exist or is not defined.

BlackByte Ransomware creates a mutex value with a hard-coded name, and terminates if that mutex already exists on the victim system. BlackByte Ransomware checks the system language to see if it matches one of a list of hard-coded values; if a match is found, the malware will terminate.

StrelaStealer variants only execute if the keyboard layout or language matches a set list of variables.

VaporRage has the ability to check for the presence of a specific DLL and terminate if it is not found.

HiddenFace can check for the presence of specific analysis tools and will terminate itself if they are found.

LockBit 2.0 will not execute on hosts where the system language is set to a language spoken in the Commonwealth of Independent States region.

NativeZone can check for the presence of KM.EkeyAlmaz1C.dll and will halt execution unless it is in the same directory as the rest of the malware's components.

ROADSWEEP requires four command line arguments to execute correctly, otherwise it will produce a message box and halt execution.

SUNSPOT only replaces SolarWinds Orion source code if the MD5 checksums of both the original source code file and backdoored replacement source code match hardcoded values.

BoomBox can check its current working directory and for the presence of a specific file and terminate if specific values are not found.