Small Sieve
Software · ATTACK:enterprise:S1035
Attributed source ↗ · Plaintext record · Complete record and assertions JSON
Inspect structured metadata and provenance
{
"id": "ATTACK:enterprise:S1035",
"title": "Small Sieve",
"type": "Software",
"source_url": "https://attack.mitre.org/software/S1035",
"snapshot": "enterprise-attack-20.0.json",
"status": "active",
"rights": "Source metadata only; source notices retained; no operational prose or payloads",
"review_status": "machine-extracted; source-specific checks passed, editorial review pending",
"stix_id": "malware--ff41b9b6-4c1d-407b-a7e2-835109c8dbc5",
"external_id": "S1035",
"domain": "enterprise",
"created": "2022-08-16T19:16:48.398Z",
"modified": "2025-04-16T20:38:45.865Z",
"version": "1.0",
"aliases": [
],
"tactics": [
],
"source_references": [
{
"source_name": "GRAMDOOR"
},
{
"source_name": "DHS CISA AA22-055A MuddyWater February 2022",
"url": "https://www.cisa.gov/uscert/ncas/alerts/aa22-055a"
},
{
"source_name": "NCSC GCHQ Small Sieve Jan 2022",
"url": "https://www.ncsc.gov.uk/files/NCSC-Malware-Analysis-Report-Small-Sieve.pdf"
},
{
"source_name": "Mandiant UNC3313 Feb 2022",
"url": "https://www.mandiant.com/resources/telegram-malware-iranian-espionage"
}
]
}Explicit source assertions (14)
First 80 shown here; the complete set is in this record’s JSON and plaintext. Each relationship retains its source and locator. No inferred relationships are added.
ATTACK:enterprise:S1035 → uses → ATTACK:enterprise:T1059.003
MITRE ATT&CK: Source assertion; no new actor identity, alias equivalence, CVE exploitation or causal inference. Procedure prose omitted.
Assertion source · Locator: relationship--1fe26342-5bd2-4f5b-91a8-e9b6c53f7c23
NCSC GCHQ Small Sieve Jan 2022ATTACK:enterprise:S1035 → uses → ATTACK:enterprise:T1105
MITRE ATT&CK: Source assertion; no new actor identity, alias equivalence, CVE exploitation or causal inference. Procedure prose omitted.
Assertion source · Locator: relationship--2ffd84e6-b76d-4c0c-9c76-ef8e55446546
NCSC GCHQ Small Sieve Jan 2022ATTACK:enterprise:S1035 → uses → ATTACK:enterprise:T1132.002
MITRE ATT&CK: Source assertion; no new actor identity, alias equivalence, CVE exploitation or causal inference. Procedure prose omitted.
Assertion source · Locator: relationship--361df799-64ee-405f-bd31-788ecc5c8d45
DHS CISA AA22-055A MuddyWater February 2022 · NCSC GCHQ Small Sieve Jan 2022ATTACK:enterprise:S1035 → uses → ATTACK:enterprise:T1480
MITRE ATT&CK: Source assertion; no new actor identity, alias equivalence, CVE exploitation or causal inference. Procedure prose omitted.
Assertion source · Locator: relationship--3790f831-7228-4de1-9272-3d304dd7328c
NCSC GCHQ Small Sieve Jan 2022ATTACK:enterprise:S1035 → uses → ATTACK:enterprise:T1016
MITRE ATT&CK: Source assertion; no new actor identity, alias equivalence, CVE exploitation or causal inference. Procedure prose omitted.
Assertion source · Locator: relationship--66d0e438-b9d5-4532-812f-3b1a30702fce
NCSC GCHQ Small Sieve Jan 2022ATTACK:enterprise:S1035 → uses → ATTACK:enterprise:T1573.002
MITRE ATT&CK: Source assertion; no new actor identity, alias equivalence, CVE exploitation or causal inference. Procedure prose omitted.
Assertion source · Locator: relationship--6e83dba5-a1ea-4a65-bc14-541bd89955a7
DHS CISA AA22-055A MuddyWater February 2022ATTACK:enterprise:S1035 → uses → ATTACK:enterprise:T1059.006
MITRE ATT&CK: Source assertion; no new actor identity, alias equivalence, CVE exploitation or causal inference. Procedure prose omitted.
Assertion source · Locator: relationship--6f94bd08-b5cb-4e6e-ae10-f858a2e55e28
NCSC GCHQ Small Sieve Jan 2022ATTACK:enterprise:S1035 → uses → ATTACK:enterprise:T1547.001
MITRE ATT&CK: Source assertion; no new actor identity, alias equivalence, CVE exploitation or causal inference. Procedure prose omitted.
Assertion source · Locator: relationship--70613a9f-e8c2-44ba-a238-34acb0b7e5b8
NCSC GCHQ Small Sieve Jan 2022ATTACK:enterprise:S1035 → uses → ATTACK:enterprise:T1036.005
MITRE ATT&CK: Source assertion; no new actor identity, alias equivalence, CVE exploitation or causal inference. Procedure prose omitted.
Assertion source · Locator: relationship--71fcb2f2-85d0-4d59-8d6e-8b5a1ccb7d29
NCSC GCHQ Small Sieve Jan 2022ATTACK:enterprise:S1035 → uses → ATTACK:enterprise:T1027
MITRE ATT&CK: Source assertion; no new actor identity, alias equivalence, CVE exploitation or causal inference. Procedure prose omitted.
Assertion source · Locator: relationship--7dfc877a-4563-4c7f-91e0-b5f5adfcb873
NCSC GCHQ Small Sieve Jan 2022ATTACK:enterprise:S1035 → uses → ATTACK:enterprise:T1033
MITRE ATT&CK: Source assertion; no new actor identity, alias equivalence, CVE exploitation or causal inference. Procedure prose omitted.
Assertion source · Locator: relationship--82927a23-3e5e-4892-b788-c35cc6e649a5
NCSC GCHQ Small Sieve Jan 2022ATTACK:enterprise:G0069 → uses → ATTACK:enterprise:S1035
MITRE ATT&CK: Source assertion; no new actor identity, alias equivalence, CVE exploitation or causal inference. Procedure prose omitted.
Assertion source · Locator: relationship--8911df73-17ac-430b-b1d5-3a021bc64998
DHS CISA AA22-055A MuddyWater February 2022 · NCSC GCHQ Small Sieve Jan 2022ATTACK:enterprise:S1035 → uses → ATTACK:enterprise:T1102.002
MITRE ATT&CK: Source assertion; no new actor identity, alias equivalence, CVE exploitation or causal inference. Procedure prose omitted.
Assertion source · Locator: relationship--dd7f2e12-d646-4a89-9ba6-4f20e88fb7db
NCSC GCHQ Small Sieve Jan 2022ATTACK:enterprise:S1035 → uses → ATTACK:enterprise:T1071.001
MITRE ATT&CK: Source assertion; no new actor identity, alias equivalence, CVE exploitation or causal inference. Procedure prose omitted.
Assertion source · Locator: relationship--e1684251-e7a6-462b-891e-62a1290152af
DHS CISA AA22-055A MuddyWater February 2022