Network Denial of Service T1498

Tactic: Impact

Adversaries may perform Network Denial of Service (DoS) attacks to degrade or block the availability of targeted resources to users. Network DoS can be performed by exhausting the network bandwidth services rely on. Example resources include specific websites, email services, DNS, and web-based applications. Adversaries have been observed conducting network DoS attacks for political purposes and to support other malicious activities, including distraction, hacktivism, and extortion.

Events covered

2 catalog events are tagged with this technique by at least one rule.

Authoring guide

These 52 rules share fields, values, and exclusions.

Fields filtered most (54 distinct)

These fields appear most often in rule filters.

FieldRulesHowSample values
DeviceEventClassID7contains 4, eq 2, in 1RPZ, 733100, 733101, 733102, 733103
facility5eq 5PM, DHCP_SNOOPING, MIRROR, PORT_SECURITY, SISF
mnemonic5eq 4, in 1ERR_DISABLE, CFGLOG_LOGGEDCMD, DHCP_SNOOPING_UNTRUSTED_PORT, ETH_SPAN_SESSION_UP, IP_THEFT
HttpStatusCode4ge 4, le 4500, 599
Active3eq 3true
Category3eq 2, contains 1DDoSMitigationFlowLogs, Attempted Denial of Service, Denial of Service, Detection of a Denial of Service Attack
Description3contains 2, eq 1Infoblox, Infoblox - HOST - Policy, Infoblox - URL, MalwareC2
ThreatLevel_Score3ge 380
EventType2in 2ProcessRollup2, application.integration.rate_limit_exceeded, core.concurrency.org.limit.violation, exec, exec_event
ResourceType2eq 2PUBLICIPADDRESSES
SyslogMessage2contains 2VCF Drop, Reverse path forwarding check fail, packet too big
disable_cause2eq 2arp-inspection, psecure-violation
CommandLine1contains 1, match 1 -single , do start wordpad.exe /p , ;Set-Service -StartupType Disabled $
CommunicationDirection1is_null 1
ControlName_s1eq 1AzureSecureScoreAdminMFAV2

Top indicator values (107 distinct)

These values appear most often in rule predicates.

FieldKindValueRules (here)Corpus reach
DeviceEventClassIDcontains
RPZ
44
Activeeq
true
360
HttpStatusCodege
500
33
HttpStatusCodele
599
33
ThreatLevel_Scorege
80
33
Categoryeq
DDoSMitigationFlowLogs
22
ResourceTypeeq
PUBLICIPADDRESSES
22
SyslogMessagecontains
VCF Drop
22
facilityeq
PM
22
mnemoniceq
ERR_DISABLE
22
Categorycontains
Attempted Denial of Service
1
Categorycontains
Denial of Service
1
Categorycontains
Detection of a Denial of Service Attack
1
CommandLinecontains
-single
1
CommandLinecontains
do start wordpad.exe /p
1
CommandLinecontains
del C:\Windows\System32\Taskmgr.exe
1
CommandLinematch
;Set-Service -StartupType Disabled $
1
CommandLinematch
powershell -command "$x...
1
CommunicationDirectionis_null
1
ControlName_seq
AzureSecureScoreAdminMFAV2
1
DNS.message_typeeq
QUERY
12
DataObservedViane
CDC
1
Descriptioncontains
Infoblox
1
Descriptioncontains
Infoblox - URL
1
Descriptioncontains
MalwareC2
1
Descriptioneq
Infoblox - HOST - Policy
1
DeviceEventClassIDeq
733100
1
DeviceEventClassIDeq
DNS Response
1
DeviceEventClassIDin
733101
1
DeviceEventClassIDin
733102
1

Rules under this technique

These vendors publish rules tagged with this technique.

Platform (all)
Domain (all)

Sigma 3 rules

Elastic 6 rules

Splunk 7 rules

Kusto 34 rules

YARA-L 1 rule

Panther 1 rule