Odbcconf.EXE Suspicious DLL Location

Severity: high
Author: Nasreddine Bencherchali (Nextron Systems)
Source: upstream

Detects execution of "odbcconf" where the path of the DLL being registered is located in a potentially suspicious location.

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`

or:
CommandLine|contains: ':\PerfLogs\'
CommandLine|contains: ':\ProgramData\'
CommandLine|contains: ':\Temp\'
CommandLine|contains: ':\Users\Public\'
CommandLine|contains: ':\Windows\Registration\CRMLog'
CommandLine|contains: ':\Windows\SysWOW64\FxsTmp\'
CommandLine|contains: ':\Windows\SysWOW64\Tasks\Microsoft\Windows\PLA\System\'
CommandLine|contains: ':\Windows\SysWOW64\Tasks\Microsoft\Windows\SyncCenter\'
CommandLine|contains: ':\Windows\SysWOW64\com\dmp\'
CommandLine|contains: ':\Windows\System32\FxsTmp\'
CommandLine|contains: ':\Windows\System32\Microsoft\Crypto\RSA\MachineKeys\'
CommandLine|contains: ':\Windows\System32\Tasks\Microsoft\Windows\SyncCenter\'
CommandLine|contains: ':\Windows\System32\Tasks_Migrated\'
CommandLine|contains: ':\Windows\System32\com\dmp\'
CommandLine|contains: ':\Windows\System32\spool\PRINTERS\'
CommandLine|contains: ':\Windows\System32\spool\SERVERS\'
CommandLine|contains: ':\Windows\System32\spool\drivers\color\'
CommandLine|contains: ':\Windows\Tasks\'
CommandLine|contains: ':\Windows\Temp\'
CommandLine|contains: ':\Windows\Tracing\'
CommandLine|contains: '\AppData\Local\Temp\'
CommandLine|contains: '\AppData\Roaming\'

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	`:\PerfLogs\` corpus 6 (sigma 6) `:\ProgramData\` corpus 5 (sigma 5) `:\Temp\` corpus 14 (sigma 14) `:\Users\Public\` corpus 14 (sigma 14) `:\Windows\Registration\CRMLog` `:\Windows\SysWOW64\FxsTmp\` `:\Windows\SysWOW64\Tasks\Microsoft\Windows\PLA\System\` `:\Windows\SysWOW64\Tasks\Microsoft\Windows\SyncCenter\` `:\Windows\SysWOW64\com\dmp\` `:\Windows\System32\FxsTmp\` `:\Windows\System32\Microsoft\Crypto\RSA\MachineKeys\` `:\Windows\System32\Tasks\Microsoft\Windows\SyncCenter\` `:\Windows\System32\Tasks_Migrated\` `:\Windows\System32\com\dmp\` `:\Windows\System32\spool\PRINTERS\` `:\Windows\System32\spool\SERVERS\` `:\Windows\System32\spool\drivers\color\` `:\Windows\Tasks\` corpus 6 (sigma 6) `:\Windows\Temp\` corpus 15 (sigma 15) `:\Windows\Tracing\` corpus 2 (sigma 2) `\AppData\Local\Temp\` corpus 16 (sigma 16) `\AppData\Roaming\` corpus 10 (sigma 10)
`Image`	ends_with	`\odbcconf.exe` corpus 11 (sigma 11)
`OriginalFileName`	eq	`odbcconf.exe` corpus 9 (sigma 9)