ABUSE.MOM
THREAT REPORT

IP Threat Report
57.141.0.33

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-27 09:02:28
First seen: 2026-03-17 01:00:06
Last seen: 2026-03-23 00:00:09
50

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 50/100. Total malicious requests observed: 14.

BOT_UADANGER_PATH
01

Geolocation & Classification

IP Address
57.141.0.33
Type
Residential
Country
🇺🇸 United States
City
Ashburn
ISP
Facebook, Inc.
Organization
Meta Platforms Ireland Limited
Autonomous System
AS32934 Facebook, Inc.
Hit Count
14
02

Detection Signatures

SignatureDescriptionPointsSeverity
UA bot: crawlerKnown bot/crawler User-Agent detected+40
Danger medium hits: 1Medium-risk: admin panels, config files+10
Σ = 50
03

Observed Activity

Reconstructed HTTP requests from server access logs. Target domains redacted for security.

[redacted]
GET
/
200
Requests shown: 1 · HTTP 404: 0 · Dangerous patterns: 0

* Typical request patterns for detected signatures. Actual target domains are redacted.

04

Timeline

2026-03-17 01:00:06
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
UA bot: crawler (+40), Danger medium hits: 1 (+10)
2026-03-23 00:00:09
Last malicious request observed
Total score reached: 50/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Facebook, Inc.
AS32934 · 🇺🇸 United States
06

Recommendations

Actions taken & recommended

  • IP 57.141.0.33 is blocked at application level (HTTP 403)
  • Consider blocking at firewall level (iptables/CSF) to reduce server load
  • Other malicious IPs detected in the same /24 subnet — consider blocking 57.141.0.0/24
  • Report abuse to the network provider via their abuse contact
  • Ensure sensitive files (.env, .git, backups) are not accessible from the web

🤖 User-Agent Anomaly Defense

IP 57.141.0.33 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

07

Neighbors in 57.141.0.0/24

Other blocked IPs from the same /24 subnet — indicates systematic abuse from this network range.

09

Blacklist Status (DNSBL)

This IP was checked against major DNS-based blacklists used by mail servers and firewalls worldwide.

✓ Clean
ix.dnsbl.manitu.net
✓ Clean
dnsbl.sorbs.net
✓ Clean
zen.spamhaus.org
✓ Clean
bl.spamcop.net
✓ Clean
dnsbl-1.uceprotect.net
✓ Clean
truncate.gbudb.net
✓ Clean
b.barracudacentral.org
✓ Clean
psbl.surriel.com

Checked: Spamhaus, SpamCop, Barracuda, SORBS, CBL, UCEProtect. Results may change over time.

10

Threat Analysis

57.141.0.33 has been assigned a threat score of 50/100 (Medium). At this threat level, the IP demonstrates moderate malicious intent. It may be part of a larger scanning campaign or early-stage reconnaissance.

The following attack categories were identified:

User-Agent Anomaly

📊 Threat Analysis

57.141.0.33 is registered in Ashburn, United States, operating on the network of Facebook, Inc.. This IP first appeared in our threat feeds after triggering multiple behavioral detection signatures. During its 5-day observation window, we recorded 14 hostile requests from this IP — roughly 2.8 per day on average. This is a residential IP address, suggesting a compromised home device such as a router, smart appliance, or infected workstation participating in a botnet. Detected suspicious User-Agent anomalies including empty, forged, or rapidly rotating UA strings — characteristic of automated scanning tools. Our records show 199 malicious IPs originating from United States, positioning it as a significant contributor to global threat activity. At 50/100, this IP presents a meaningful threat. Implement rate limiting with escalation to blocking.

This IP is classified as residential, suggesting it may belong to a compromised home device, IoT botnet member, or an infected personal computer. Residential IPs involved in attacks often indicate malware infection without the owner's knowledge.

11

Related Threats

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🏢 Same network: AS32934

31.13.127.87 (135)31.13.127.41 (135)31.13.127.18 (135)57.141.0.35 (110)57.141.0.48 (90)View all →
12

Security Intelligence

💡 User-Agent Analysis Techniques

Analyzing User-Agent strings reveals automated tools masquerading as legitimate browsers. Inconsistencies between claimed browser capabilities and actual behavior, impossible version combinations, and known scanner signatures help identify malicious clients.

💡 Content Delivery Network Risks

CDNs can inadvertently mask the true origin of malicious traffic, making attribution difficult. Attackers abuse CDN services to proxy their attacks, leverage cached content for amplification, and exploit misconfigurations in CDN-to-origin connections.

🔍 Check Any IP Address

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