New DLL Registered Via Odbcconf.EXE

Severity: medium
Author: Kirill Kiryanov, Beyu Denis, Daniil Yugoslavskiy, oscd.community, Nasreddine Bencherchali (Nextron Systems)
Source: upstream

Detects execution of "odbcconf" with "REGSVR" in order to register a new DLL (equivalent to running regsvr32). Attackers abuse this to install and run malicious DLLs.

MITRE ATT&CK coverage

Tactic	Techniques
Defense Evasion	`T1218.008` System Binary Proxy Execution: Odbcconf

Event coverage

Provider	Event ID	Title
Sysmon	1	Process creation

Stages and Predicates

Stage 1: `all of selection_img`

or:
Image|endswith: '\odbcconf.exe'
OriginalFileName: odbcconf.exe

Stage 2: `all of selection_cli`

CommandLine|contains: .dll
CommandLine|contains: 'REGSVR '

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

Field	Kind	Values
`CommandLine`	match	`.dll` corpus 15 (sigma 15) `REGSVR` corpus 2 (sigma 2)
`Image`	ends_with	`\odbcconf.exe` corpus 11 (sigma 11)
`OriginalFileName`	eq	`odbcconf.exe` corpus 9 (sigma 9)