- First seen
- Last seen
THREAT SIGNALMedium-high
Read alongside the verdict
Indicator overview
INDICATOR PROFILEEngine detections are elevated in this report. Review the reported confidence, classification and relationships alongside them.
- SHA256
b0bd0e7202e289c8ce2e372ef3ec160da7843dcef8499e7596e44b817185ab07- SHA1
9837a62e2dcc36dcccfdbda8aa10b800bd812bfb- MD5
577b38dd6898868d05fe0aef7f6084fb- Filename
- 577b38dd6898868d05fe0aef7f6084fb_x
- File type
- shell
- MIME
- text/plain
- File size
- 48636
- Filename variants
- 3 reported
- TLSH
T112235C62F98376B03F514279DF91A4667F5BDC2B8E682B41F0866D1CA1346BCB0B24D3- SSDEEP
768:i991LHuydzUKO8EorVMuMN0NBF7SsA6cYtNGTiPax+dFVcglW:4xHuYUKV9x7aahW
Connected context
Key findings
OBSERVED EVIDENCEAnalysis takeaway
Elevated engine detections. Related indicators in this report: 15. Review the supporting evidence before taking action.
Detection signal
Malicious. Engine detections are elevated at 47%.
Confidence signal
VirusSign reports 100% confidence. Review this alongside engine detections and relationship evidence.
Analysis signals
OBSERVEDEngine detections47%
VirusSign confidence100%
Relationship context15 visible
Threat classificationgsnetcat
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Graph filters
Saved investigations
Compare when indicators were first seen, last seen and observed. Switch to Lifecycle to connect events for the same IOC.
Review approximate infrastructure locations and geographic concentration.
Commonalities
RELATIONSHIP CONSTELLATION
No observations in this view
Available evidence appears in the other investigation lenses.
SELECT A NODE TO EXPLORE
FILEDOMAINIPURL
Visible connections
Related intelligence
Pivot across connected files and infrastructure with analysis signals and supporting context.
Dropped / child files
Files dropped, bundled, or created by the queried file.
5shown
0%
text
23 bytes
drops
Filename
defunct.dat
File type
text
MIME
text/plain
Size
23
SHA1
c64cf82327f5a469cb639a09342b4f4d5d47cfee
10%
critical
shell
530 bytes
drops
Filename
.zshrc
Family
shell
Type
dropper
File type
shell
MIME
text/plain
0%
text
23 bytes
drops
Filename
defunct.dat
File type
text
MIME
text/plain
Size
23
SHA1
2b1bfd4169246c806edd25aae7a7d596d3d0d923
11%
critical
shell
667 bytes
drops
Filename
.zprofile
Family
shell
Type
dropper
File type
shell
MIME
text/plain
10%
critical
shell
518 bytes
drops
Filename
.zshrc
Family
shell
Type
dropper
File type
shell
MIME
text/plain
Related IPs
Network IPs associated with this indicator.
5shown
0%
US
communicates
CIDR
23.61.208.0/21
Network
23.61.208.0-23.61.223.255
First seen
2024-01-06T10:20:05Z
Last seen
2026-11-11T22:00:56Z
0%
GB
communicates
CIDR
17.253.36.0/22
Network
17.0.0.0-17.255.255.255
First seen
2023-10-16T14:29:51Z
Last seen
2026-11-11T22:00:44Z
0%
US
communicates
CIDR
17.253.80.0/22
Network
17.0.0.0-17.255.255.255
First seen
2025-06-04T08:37:32Z
Last seen
2026-11-11T22:10:20Z
0%
US
communicates
CIDR
17.253.80.0/22
Network
17.0.0.0-17.255.255.255
First seen
2025-06-03T04:06:11Z
Last seen
2026-11-11T22:22:19Z
0%
GB
communicates
CIDR
17.253.36.0/22
Network
17.0.0.0-17.255.255.255
First seen
2023-11-30T18:58:17Z
Last seen
2026-11-11T21:57:01Z
Related domains
Domains associated with this indicator.
5shown
0%
.net
communicates
Root
akamaiedge.net
TLD
net
Subdomain
e4805.dsca
First seen
2023-09-29T04:59:22Z
Last seen
2026-11-11T22:39:13Z
10%
medium
.org
communicates
Root
thc.org
TLD
org
Subdomain
g.gs
First seen
2023-10-21T16:18:14Z
Last seen
2026-11-08T14:07:43Z
16%
medium
.org
communicates
Root
thc.org
TLD
org
Subdomain
e.gs
First seen
2024-01-07T16:56:45Z
Last seen
2026-11-08T14:07:43Z
16%
medium
.org
communicates
Root
thc.org
TLD
org
Subdomain
o.gs
First seen
2024-01-11T16:29:49Z
Last seen
2026-11-08T14:07:50Z
0%
.net
communicates
Root
akamaiedge.net
TLD
net
Subdomain
e5977.dsce9
First seen
2023-09-28T22:03:10Z
Last seen
2026-11-11T22:39:13Z
Analysis details
Severity: criticaltrojanshellself-deleteexecdebug-checkunsigned-execdownloaderbackdoor
Freshness: Fresh · Last seen 3 days ago.
- Detection rate
- 47%
- Threat type
- trojan
- Family
- gsnetcat
- Confidence
- 100%
- detection
- 47 · Engine detection rate; color may also reflect VirusSign confidence.
Overview
- SHA256
b0bd0e7202e289c8ce2e372ef3ec160da7843dcef8499e7596e44b817185ab07- SHA1
9837a62e2dcc36dcccfdbda8aa10b800bd812bfb- MD5
577b38dd6898868d05fe0aef7f6084fb- Filename
- 577b38dd6898868d05fe0aef7f6084fb_x
- File type
- shell
- MIME
- text/plain
- File size
- 48636
- TLSH
T112235C62F98376B03F514279DF91A4667F5BDC2B8E682B41F0866D1CA1346BCB0B24D3- SSDEEP
768:i991LHuydzUKO8EorVMuMN0NBF7SsA6cYtNGTiPax+dFVcglW:4xHuYUKV9x7aahW- First seen
- 2026-10-20T08:52:52Z
- Last seen
- 2026-11-08T14:07:38Z
- Filename variants
- 3 reported
Key findings
A focused interpretation of the evidence, relationships and observation history that matter most.
Analysis takeaway
Elevated engine detections. Related indicators in this report: 15. Review the supporting evidence before taking action.
Detection signal
Malicious. Engine detections are elevated at 47%.
Confidence signal
VirusSign reports 100% confidence. Review this alongside engine detections and relationship evidence.
Threat context
Classification includes type trojan and family gsnetcat.
Relationship context
15 related indicators are shown across 3 relationship group(s). Additional relationship intelligence is available through API and data access.
Observation timeline
16 timestamped observations are arranged from 2023-09-28 to 2026-10-25. These are observation or metadata times, not execution order.
Why this verdict
Review the reported detections, analysis confidence and supporting context.
Engine detections are elevated in this report. Review the reported confidence, classification and relationships alongside them.
Reported engine detection rate, not the probability that this indicator is malicious.
VirusSign analysis confidence; separate from detection rate and actor-association confidence.
3 relationship group(s) provide pivot and infrastructure context.
Classification context: type trojan, family gsnetcat.
Last seen 3 days ago.
Signals reflect the intelligence returned in this report. Missing values mean not reported, not zero. Related indicators are investigation leads, not proof of shared malicious activity.
File profile
summarySelected file intelligence summary.
- Filename
- 577b38dd6898868d05fe0aef7f6084fb_x
- File type
- shell
- MIME
- text/plain
- Size
- 48636
Observed behavior
selected detailsSelected behavioral observations and reported framework mappings.
View details · 5 shown
- Classification label
- Connects to IPs without corresponding DNS lookups
- Creates hidden files and/or directories
- Deletes files from disk
- Detect curl execution fetching remote content which is often used by installers or scripts. Requires curl/wget/fetch to be the executing process.
5 shown
View MITRE ATT&CK details · 5 shown
- T1564.001 — Creates hidden files, links and/or directoriesTactics: TA0005
- T1070.004 — Deletes files from diskTactics: TA0005
- T1003 — Enumerates processes within the "proc" file systemTactics: TA0006
- T1064 — Executes commands using a shell command-line interpreterTactics: TA0002 · TA0005
- T1059 — Executes the "awk" command used to scan for patterns (typically in standard output)Tactics: TA0002
5 shown
View MBC details · 5 shown
- CommunicationObjectives: OC0006
- Defense EvasionObjectives: OB0006
- C0047 — Delete FileObjectives: OC0001
- File SystemObjectives: OC0001
- C0002 — HTTP CommunicationObjectives: OC0006
5 shown
Network activity
selected detailsSelected observations and details. Additional structured data are available through API and data access.
Network activity5+
TCP, UDPports 443, 80, 5223
- 5+ outbound connections observed
- 0 domains, 5+ IPs, 0 URLs
- Common ports: 443, 80, 5223, 53
- Protocols: TCP, UDP
View details · 5 shown
- IP
- 151.101.3.6
- Port
- 443
- Protocol
- UDP
- IP
- 151.101.3.6
- Port
- 443
- Protocol
- TCP
- IP
- 151.101.131.6
- Port
- 443
- Protocol
- UDP
- IP
- 51.94.136.141
- Port
- 443
- Protocol
- TCP
- IP
- 45.90.4.121
- Port
- 443
- Protocol
- TCP
5 shown
DNS request activity5+
A, A/AAAA5+ response IPs
- 5+ DNS requests observed
- 5+ unique queries
- 5+ response IPs
- Query types: A, A/AAAA
- Response codes: NOERROR
View details · 5 shown
- Query
- e.gs.thc.org
- Type
- A
- Answers
- 217.154.53.187
- Response
- NOERROR
- Query
- o.gs.thc.org
- Type
- A
- Answers
- 152.53.173.29
- Response
- NOERROR
- Query
- g.gs.thc.org
- Type
- A
- Answers
- 45.90.4.121
- Response
- NOERROR
- Query
- s.mzstatic.com
- Type
- A
- Answers
- 17.253.83.140, 17.253.83.136, 17.253.83.154, 17.253.83.144
- Response
- NOERROR
- Query
- s.mzstatic.com
- Type
- A
- Answers
- 17.253.83.144, 17.253.83.136
- Response
- NOERROR
5 shown
C2 candidates1
DNSports 53
- 1 C2 candidate communications
- 1 domains, 1 IPs
- Common ports: 53
- Protocols: DNS
View details · 1 shown
- IP
- 217.154.53.187
- Domain
- e.gs.thc.org
- Port
- 53
- Protocol
- DNS