YARA · SEKOIA.IO Community
SEKOIA_Implant_Win_Flagpro
Detect the Flagpro malware used by Blacktech
- Author
- Sekoia.io
- Date
- 2022-04-22
- Modified
- 2024-12-19
- Score / Quality
- 75 / 80
What this rule detects
Detect the Flagpro malware used by Blacktech
Associated malware family: Flagpro.
Targets: Windows PE.
It defines 10 patterns (9 text, 0 hex, 1 regex).
Summary generated from the rule's metadata and condition.
Rule source
implant-win-flagpro.yarDetection Rule License 1.1
rule SEKOIA_Implant_Win_Flagpro : FILE
{
meta:
= "Detect the Flagpro malware used by Blacktech"
= "Sekoia.io"
= "08dd2de4-b359-424f-af04-7f294d519363"
= "2022-04-22"
= "2024-12-19"
= "https://github.com/SEKOIA-IO/Community"
= "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/implant_win_flagpro.yar#L1-L26"
= "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
= "eb1aba9924af474d6d890572a9bf72e0d1aa5dc31dd4cc34648195b0207ab4d6"
= 75
= 80
= "FILE"
= "1.0"
= "TLP:CLEAR"
strings:
$ = "<BODY ID=CV20_LoaderDlg BGCOLOR=LIGHTGREY style=\"font-family:MS Shell Dlg;font-size:8\">" ascii
$ = "<TABLE WIDTH=100% HEIGHT=100%>" ascii
$ = "<TR WIDTH=100% HEIGHT=45%>" ascii
$ = "<TD ALIGN=CENTER VALIGN=BOTTOM>" ascii
$ = "TODO: Place controls here." ascii
$ = "<TD ALIGN=RIGHT VALIGN=BOTTOM>" ascii
$ = "<BUTTON STYLE=\"WIDTH:100\" ID=\"ButtonHelp\">Help</BUTTON> <BUTTON STYLE=\"WIDTH:100\" ID=\"ButtonOK\">OK</BUTTON> <BUTTON STYLE=\"WIDTH:100\" ID=\"ButtonCancel\">Cancel</BUTTON>" ascii
$about_loader = /About V[0-9]+\.[0-9]+_Loader.../ wide
$path = "f:\\dd\\vctools\\vc7libs\\ship\\atlmfc\\include\\" wide
$regitry = "Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\" wide
condition:
uint16( 0 ) == 0x5A4D and all of them
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $ | text | "<BODY ID=CV20_LoaderDlg BGCOLOR=LIGHTGREY style=\"font-family:MS Shell Dlg;font-size:8\">" | ascii |
| $ | text | "<TABLE WIDTH=100% HEIGHT=100%>" | ascii |
| $ | text | "<TR WIDTH=100% HEIGHT=45%>" | ascii |
| $ | text | "<TD ALIGN=CENTER VALIGN=BOTTOM>" | ascii |
| $ | text | "TODO: Place controls here." | ascii |
| $ | text | "<TD ALIGN=RIGHT VALIGN=BOTTOM>" | ascii |
| $ | text | "<BUTTON STYLE=\"WIDTH:100\" ID=\"ButtonHelp\">Help</BUTTON> <BUTTON STYLE=\"WIDTH:100\" ID=\"ButtonOK\">OK</BUTTON> <BUTTON STYLE=\"WIDTH:100\" … | ascii |
| $about_loader | regex | /About V[0-9]+\.[0-9]+_Loader.../ | wide |
| $path | text | "f:\\dd\\vctools\\vc7libs\\ship\\atlmfc\\include\\" | wide |
| $regitry | text | "Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\" | wide |
Condition
uint16( 0 ) == 0x5A4D and all of themIn plain words (Heuristic)
- The file must start with “MZ” — a Windows executable (PE).
- All patterns in the rule must match.
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References
Licence & attribution
Author: Sekoia.io
Source repository: SEKOIA.IO Community @ a438a5901a
Licence: Detection Rule License 1.1 (repository licence)
Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.
Rule id: 08dd2de4-b359-424f-af04-7f294d519363
Metadata
| version | 1.0 |
|---|---|
| classification | TLP:CLEAR |
Tags:FILE
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