Procedure examples

NotPetya uses wevtutil to clear the Windows event logs.

RunningRAT contains code to clear event logs.

MultiLayer Wiper removes Windows event logs during execution.

LockBit 3.0 can delete log files on targeted systems.

Hydraq creates a backdoor through which remote attackers can clear all system event logs.

gh0st RAT is able to wipe event logs.

HermeticWiper can overwrite the `C:\Windows\System32\winevt\Logs` file on a targeted system.

LockBit 2.0 can delete log files through the use of wevtutil.

FinFisher clears the system event logs using OpenEventLog/ClearEventLog APIs .

ZxShell has a command to clear system event logs.

Meteor can use Wevtutil to remove Security, System and Application Event Viewer logs.

KillDisk deletes Application, Security, Setup, and System Windows Event Logs.

Qilin has the ability to clear Windows Event Logs.

HermeticWizard has the ability to use `wevtutil cl system` to clear event logs.

Pupy has a module to clear event logs with PowerShell.

Wevtutil can be used to clear system and security event logs from the system.

JumbledPath can clear logs on all devices used along its connection path to compromised network infrastructure.

UPSTYLE clears error logs after reading embedded commands for execution.

MacMa can clear possible malware traces such as application logs.

Proton removes logs from /var/logs and /Library/logs.

Kasidet has the ability to change firewall settings to allow a plug-in to be downloaded.

Hannotog can modify local firewall settings via `netsh` commands to open a listening UDP port.

PyDCrypt has modified firewall rules to allow incoming SMB, NetBIOS, and RPC connections using `netsh.exe` on remote machines.

THINCRUST can use the Django python module "django.views.decorators.csrf” along with the decorator “csrf_exempt” within victim firewalls to disable cross-site request forgery protections.

ShrinkLocker turns on the system firewall and deletes all of its rules during execution.

HOPLIGHT has modified the firewall using netsh.

InvisiMole has a command to disable routing and the Firewall on the victim’s machine.

PlugX has modified local firewall rules on victim machines to enable a random, high-number listening port for subsequent access and C2 activity.

BPFDoor starts a shell on a high TCP port starting at 42391 up to 43391, then changes the local `iptables` rules to redirect all packets from the attacker to the shell port.

Grandoreiro can block the Deibold Warsaw GAS Tecnologia security tool at the firewall level.

NanoCore can modify the victim's firewall.

ZxShell can disable the firewall by modifying the registry key HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile.

CookieMiner has checked for the presence of "Little Snitch", macOS network monitoring and application firewall software, stopping and exiting if it is found.

The "ZR" variant of BACKSPACE will check to see if known host-based firewalls are installed on the infected systems. BACKSPACE will attempt to establish a C2 channel, then will examine open windows to identify a pop-up from the firewall software and will simulate a mouse-click to allow the connection to proceed.

netsh can be used to disable local firewall settings.

Pacu can allowlist IP addresses in AWS GuardDuty.

Grandoreiro can block the Deibold Warsaw GAS Tecnologia security tool at the firewall level.

Cyclops Blink can modify the Linux iptables firewall to enable C2 communication on network devices via a stored list of port numbers.

BlackByte 2.0 Ransomware modifies the Windows firewall during execution.

DarkComet can disable Security Center functions like the Windows Firewall.

Remsec can add or remove applications or ports on the Windows firewall or disable it entirely.

TYPEFRAME can open the Windows Firewall on the victim’s machine to allow incoming connections.

BADCALL disables the Windows firewall before binding to a port.

HiddenFace can reconfigure Windows firewalls to enable communication by adding a rule named “Cortana” to allow inbound connection to TCP/47000.

HARDRAIN opens the Windows Firewall to modify incoming connections.

njRAT has modified the Windows firewall to allow itself to communicate through the firewall.

H1N1 kills and disables services for Windows Firewall.

AvosLocker can restart a compromised machine in safe mode.

RansomHub can reboot targeted systems into Safe Mode prior to encryption.

LockBit 3.0 can reboot the infected host into Safe Mode.